Airworthiness Directives; Boeing Model 757-200 and -300 Series Airplanes, 39597-39600 [E6-11020]
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Federal Register / Vol. 71, No. 134 / Thursday, July 13, 2006 / Proposed Rules
(2) Before using any AMOC approved in
accordance with § 39.19 on any airplane to
which the AMOC applies, notify the
appropriate principal inspector in the FAA
Flight Standards Certificate Holding District
Office.
Related Information
(i) The European Aviation Safety Agency
airworthiness directive 2006–0132, dated
May 18, 2006, also addresses the subject of
this AD.
Issued in Renton, Washington, on July 6,
2006.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E6–11022 Filed 7–12–06; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2006–25326; Directorate
Identifier 2006–NM–081–AD]
RIN 2120–AA64
Airworthiness Directives; Boeing
Model 757–200 and –300 Series
Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Notice of proposed rulemaking
(NPRM).
• DOT Docket Web site: Go to
https://dms.dot.gov and follow the
instructions for sending your comments
electronically.
• Government-wide rulemaking Web
site: Go to https://www.regulations.gov
and follow the instructions for sending
your comments electronically.
• Mail: Docket Management Facility,
U.S. Department of Transportation, 400
Seventh Street, SW., Nassif Building,
Room PL–401, Washington, DC 20590.
• Fax: (202) 493–2251.
• Hand Delivery: Room PL–401 on
the plaza level of the Nassif Building,
400 Seventh Street, SW., Washington,
DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
Contact Boeing Commercial
Airplanes, P.O. Box 3707, Seattle,
Washington 98124–2207, for the service
information identified in this proposed
AD.
FOR FURTHER INFORMATION CONTACT:
Natalie Phan-Tran, Aerospace Engineer,
Systems and Equipment Branch, ANM–
130L, FAA, Los Angeles Aircraft
Certification Office, 3960 Paramount
Boulevard, Lakewood, California
90712–4137; telephone (562) 627–5343;
fax (562) 627–5210.
SUPPLEMENTARY INFORMATION:
rwilkins on PROD1PC63 with PROPOSAL
AGENCY:
Comments Invited
SUMMARY: The FAA proposes to adopt a
new airworthiness directive (AD) for
certain Boeing Model 757–200 and –300
series airplanes. This proposed AD
would require changes to existing
wiring; installation of new circuit
breakers, relays, relay connectors, and
wiring; and replacement of certain
circuit breakers with higher-rated circuit
breakers. For certain airplanes, this
proposed AD also requires modification
of wiring of the control module
assembly for the electrical systems. This
proposed AD results from an in-flight
entertainment (IFE) systems review. We
are proposing this AD to ensure that the
flightcrew is able to turn off electrical
power to the IFE system through utility
bus switches in the flight compartment.
The flightcrew’s inability to turn off
power to the IFE system during a nonnormal or emergency situation could
result in the inability to control smoke
or fumes in the airplane flight deck or
cabin.
DATES: We must receive comments on
this proposed AD by August 28, 2006.
ADDRESSES: Use one of the following
addresses to submit comments on this
proposed AD.
We invite you to submit any relevant
written data, views, or arguments
regarding this proposed AD. Send your
comments to an address listed in the
ADDRESSES section. Include the docket
number ‘‘FAA–2006–25326; Directorate
Identifier 2006–NM–081–AD’’ at the
beginning of your comments. We
specifically invite comments on the
overall regulatory, economic,
environmental, and energy aspects of
the proposed AD. We will consider all
comments received by the closing date
and may amend the proposed AD in
light of those comments.
We will post all comments we
receive, without change, to https://
dms.dot.gov, including any personal
information you provide. We will also
post a report summarizing each
substantive verbal contact with FAA
personnel concerning this proposed AD.
Using the search function of that Web
site, anyone can find and read the
comments in any of our dockets,
including the name of the individual
who sent the comment (or signed the
comment on behalf of an association,
business, labor union, etc.). You may
review DOT’s complete Privacy Act
Statement in the Federal Register
published on April 11, 2000 (65 FR
19477–78), or you may visit https://
dms.dot.gov.
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Examining the Docket
You may examine the AD docket on
the Internet at https://dms.dot.gov, or in
person at the Docket Management
Facility office between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays. The Docket
Management Facility office (telephone
(800) 647–5227) is located on the plaza
level of the Nassif Building at the DOT
street address stated in the ADDRESSES
section. Comments will be available in
the AD docket shortly after the Docket
Management System receives them.
Discussion
The Federal Aviation Administration
(FAA) completed a review of in-flight
entertainment (IFE) systems certified by
supplemental type certificate (STC) and
installed on transport category
airplanes. The review focused on the
interface between the IFE system and
airplane electrical system, with the
objective of determining if any unsafe
conditions exist with regard to the
interface. STCs issued between 1992
and 2000 were considered for the
review.
The type of IFE systems considered
for review were those that contain video
monitors (cathode ray tubes or liquid
crystal displays; either hanging above
the aisle or mounted on individual seat
backs or seat trays), or complex circuitry
(i.e., power supplies, electronic
distribution boxes, extensive wire
routing, relatively high power
consumption, multiple layers of circuit
protection, etc.). In addition, in-seat
power supply systems that provide
power to more than 20 percent of the
total passenger seats were also
considered for the review. The types of
IFE systems not considered for review
include systems that provide only audio
signals to each passenger seat, ordinary
in-flight telephone systems (e.g., one
telephone handset per group of seats or
bulkhead-mounted telephones), systems
that have only a video monitor on the
forward bulkhead(s) (or a projection
system) to provide passengers with
basic airplane and flight information,
and in-seat power supply systems that
provide power to less than 20 percent of
the total passenger seats.
Items considered during the review
include the following:
• Can the electrical bus(es) supplying
power to the IFE system be de-energized
when necessary without removing
power from systems that may be
required for continued safe flight and
landing?
• Can IFE system power be removed
when required without pulling IFE
system circuit breakers (i.e., is there a
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Federal Register / Vol. 71, No. 134 / Thursday, July 13, 2006 / Proposed Rules
switch (dedicated to the IFE system or
a combination of loads) located in the
flight deck or cabin that can be used to
remove IFE power?)?
• If the IFE system requires changes
to flightcrew procedures, has the
airplane flight manual (AFM) been
properly amended?
• If the IFE system requires changes
to cabin crew procedures, have they
been properly amended?
• Does the IFE system require
periodic or special maintenance?
In all, we reviewed approximately 180
IFE systems approved by STC. The
review results indicate that potential
unsafe conditions exist on some IFE
systems installed on various transport
category airplanes. These conditions can
be summarized as:
• Electrical bus(es) supplying power
to the IFE system cannot be de–
energized when necessary without
removing power from systems that may
be required for continued safe flight and
landing.
• Power cannot be removed from the
IFE system when required without
pulling IFE system circuit breakers (i.e.,
there is no switch dedicated to the IFE
system or combination of systems for
the purpose of removing power).
• Installation of the IFE system has
affected crew (flightcrew and/or cabin
crew) procedures, but the procedures
have not been properly revised.
The IFE system on the Model 757–200
and –300 series airplanes is connected
to an electrical bus that cannot be
deactivated without also removing
power from airplane systems necessary
for safe flight and landing. There is no
other means to remove power from the
IFE system. This condition, if not
corrected, could result in the
flightcrew’s inability to turn off
electrical power to the IFE system
through utility bus switches in the flight
compartment during a non-normal or
emergency situation, and consequent
inability to control smoke or fumes in
the airplane flight deck or cabin.
Other Relevant Rulemaking
We have issued numerous ADs
previously that address unsafe
conditions and require corrective
actions similar to those that would be
required by the proposed AD. Those
ADs and the applicable airplanes and
STC number are identified in the
following table.
STC No.
AD reference
Airbus Model A340–211 airplanes .....
ST09092AC–D ...................
Boeing Model 737–200 series airplanes.
Boeing Model 737–300 series airplanes.
Boeing Model 737–700 series airplanes.
rwilkins on PROD1PC63 with PROPOSAL
Airplanes
ST00516AT ........................
AD 2001–18–01, amendment 39–12427 (66 FR 46939, September 10,
2001).
AD 2004–05–27, amendment 39–13522 (69 FR 12063, March 15, 2004).
ST00171SE ........................
AD 2001–14–10, amendment 39–12321 (66 FR 36455, July 12, 2001).
ST09100AC–D,
ST09104AC–D,
ST09105AC–D,
ST09106AC–D.
Not applicable ....................
AD 2001–14–12, amendment 39–12323 (66 FR 36452, July 12, 2001).
SA8622SW .........................
AD 2001–14–11, amendment 39–12322 (66 FR 36453, July 12, 2001).
ST00196SE ........................
AD 2001–16–19, amendment 39–12388 (66 FR 43068, August 17, 2001).
SA8843SW .........................
AD 2001–14–15, amendment 39–12326 (66 FR 36447, July 12, 2001).
ST09097AC–D ...................
SA1727GL ..........................
AD 2001–14–14, amendment 39–12325 (66 FR 36449, July 12, 2001).
AD 2001–14–01, amendment 39–12311 (66 FR 36149, July 11, 2001).
SA4998NM .........................
AD 2001–16–21, amendment 39–12390 (66 FR 43072, August 17, 2001).
SA5134NM .........................
AD 2001–16–20, amendment 39–12389 (66 FR 43066, August 17, 2001).
ST09022AC–D ...................
AD 2001–14–13, amendment 39–12324 (66 FR 36450, July 12, 2001).
SA5765NM, SA5978NM .....
AD 2001–16–17, amendment 39–12386 (66 FR 42937, August 16, 2001).
SA7019NM–D ....................
ST00118SE ........................
AD 2001–18–08, amendment 39–12434 (66 FR 46517, September 6,
2001).
AD 2001–14–04, amendment 39–12314 (66 FR 36699, July 13, 2001).
ST00157SE ........................
AD 2001–16–18, amendment 39–12387 (66 FR 43070, August 17, 2001).
ST01869AT–D ....................
AD 2002–26–14, amendment 39–13002 (68 FR 1525, January 13, 2003).
ST01783AT–D ....................
AD 2003–07–15, amendment 39–13111 (68 FR 18535, April 16, 2003).
Not applicable ....................
SA8026NM .........................
AD 2003–14–10, amendment 39–13229 (68 FR 42583, July 18, 2003; corrected at 68 FR 44385, July 28, 2003).
AD 2001–14–02, amendment 39–12312 (66 FR 36456, July 12, 2001).
SA8452SW .........................
AD 2001–16–22, amendment 39–12391 (66 FR 43074, August 17, 2001).
Boeing Model 737–600, –700, –800
series airplanes and Model 757–
200 and –300 series airplanes.
Boeing Model 747–100 and –200 series airplanes.
Boeing Model 747–100 and –200 series airplanes.
Boeing Model 747–400 series airplanes.
Boeing Model 747SP series airplanes
Boeing Model 757–200 series airplanes.
Boeing Model 767–200 series airplanes.
Boeing Model 767–200 series airplanes.
Boeing Model 767–200 series airplanes.
Boeing Model 767–300 series airplanes.
Boeing Model 767–300 series airplanes.
Boeing Model 767–300 series airplanes.
Boeing Model 767–300 series airplanes.
Boeing Model 767–300 series airplanes.
Boeing Model 767–300 series airplanes.
Boeing Model 767–200 and –300 series airplanes.
McDonnell Douglas Model DC–9–51
and DC–9–83 airplanes.
McDonnell Douglas Model DC–10–30
airplanes.
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AD 2003–26–12, amendment 39–13411 (69 FR 861, January 7, 2004).
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Federal Register / Vol. 71, No. 134 / Thursday, July 13, 2006 / Proposed Rules
39599
Airplanes
STC No.
AD reference
McDonnell Douglas Model DC–10–30
airplanes.
ST00054SE ........................
McDonnell Douglas Model MD–11
airplanes.
ST00236LA–D (Santa Barbara Aerospace).
AD 2001–14–03, amendment 39–12313 (66 FR 36150, July 11, 2001) (Inadvertently referenced by the Federal Register as AD 2001–13–03, in
the Agency Docket Number heading, on page 36150, in the third column).
AD 99–20–08, amendment 39–11338 (64 FR 52221, September 28,
1999).
Relevant Service Information
We have reviewed Boeing Service
Bulletin 757–24–0093, dated August 14,
2003 (for Model 757–200 series
airplanes); and Boeing Service Bulletin
757–24–0094, dated April 17, 2003 (for
Model 757–300 series airplanes). The
service bulletins describe the following
procedures:
• For all airplanes, changing the
wiring at the P5 and P11 panel
assemblies in the flight compartment, at
the P36 panel assembly in the forward
cargo compartment, and at the P37 and
P70 panel assemblies in the main
electronics compartment.
• For all airplanes, installing a new
relay at the P36 panel assembly in the
forward cargo compartment and at the
P37 panel assembly in the main
electronics compartment.
• For certain Model 757–200 series
airplanes, installing new circuit
breakers C3090 and C3089 at the P37
and P70 panel assemblies, respectively,
in the main electronics compartment.
• For certain Model 757–200 series
airplanes and certain Model 757–300
series airplanes, replacing circuit
breakers C311 and C315 at the P31 and
P32 panel assemblies, respectively, in
the main electronics compartment with
higher-rated circuit breakers.
• For all Model 757–300 series
airplanes, installing a relay connector at
the P37 panel assembly and at the P36
panel assembly.
• For certain Model 757–300 series
airplanes, installing new wires between
the P5 panel assembly in the flight
compartment and the P36 and P37 panel
assemblies in the main electronics
compartment.
Accomplishing the actions specified
in the service information is intended to
adequately address the unsafe
condition.
installing new wiring and changing the
existing wiring of the control module
assembly.
Concurrent Service Information
There are about 548 airplanes of the
affected design in the worldwide fleet.
This proposed AD would affect about
332 Model 757–200 and 7–300 airplanes
of U.S. registry. The following table
provides the estimated costs, at an
average labor rate of $80 per hour, for
U.S. operators to comply with this
proposed AD. The estimated work hours
and cost of parts in the following table
depend on the relay and wiring
configuration of an airplane.
For certain Model 757–200 series
airplanes, Boeing Service Bulletin 757–
24–0093 also recommends concurrent
accomplishment of Boeing Component
Service Bulletin 233N3209–24–04,
Revision 1, dated August 14, 2003.
Boeing Component Service Bulletin
233N3209–24–04 describes procedures
for modifying the wiring of the control
module assembly for the electrical
systems. The modification includes
FAA’s Determination and Requirements
of the Proposed AD
We have evaluated all pertinent
information and identified an unsafe
condition that is likely to exist or
develop on other airplanes of this same
type design. For this reason, we are
proposing this AD, which would require
accomplishing the actions specified in
the service information described
previously.
Costs of Compliance
ESTIMATED COSTS
Action
757–200 series airplanes.
Installation ...............
38–46
$2,781–$5,917
$5,821–$9,597
318
Concurrent modification.
Installation ...............
3
73–90
313–330
318
$1,851,078–
$3,051,846
99,534–104,940
22
2,080–4,632
3,840–6,392
14
53,760–89,488
757–300 series airplanes.
Work hours
rwilkins on PROD1PC63 with PROPOSAL
Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
section 106, describes the authority of
the FAA Administrator. Subtitle VII,
Aviation Programs, describes in more
detail the scope of the Agency’s
authority.
We are issuing this rulemaking under
the authority described in subtitle VII,
part A, subpart III, section 44701,
‘‘General requirements.’’ Under that
section, Congress charges the FAA with
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Parts
Number of
U.S.-registered
airplanes
Model
Cost per airplane
promoting safe flight of civil aircraft in
air commerce by prescribing regulations
for practices, methods, and procedures
the Administrator finds necessary for
safety in air commerce. This regulation
is within the scope of that authority
because it addresses an unsafe condition
that is likely to exist or develop on
products identified in this rulemaking
action.
Regulatory Findings
We have determined that this
proposed AD would not have federalism
implications under Executive Order
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Fleet cost
13132. This proposed AD would not
have a substantial direct effect on the
States, on the relationship between the
national Government and the States, or
on the distribution of power and
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify that the proposed regulation:
1. Is not a ‘‘significant regulatory
action’’ under Executive Order 12866;
2. Is not a ‘‘significant rule’’ under the
DOT Regulatory Policies and Procedures
(44 FR 11034, February 26, 1979); and
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Federal Register / Vol. 71, No. 134 / Thursday, July 13, 2006 / Proposed Rules
3. Will not have a significant
economic impact, positive or negative,
on a substantial number of small entities
under the criteria of the Regulatory
Flexibility Act.
We prepared a regulatory evaluation
of the estimated costs to comply with
this proposed AD and placed it in the
AD docket. See the ADDRESSES section
for a location to examine the regulatory
evaluation.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Safety.
The Proposed Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA proposes to amend 14 CFR part
39 as follows:
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The Federal Aviation
Administration (FAA) amends § 39.13
by adding the following new
airworthiness directive (AD):
Boeing: Docket No. FAA–2006–25326;
Directorate Identifier 2006–NM–081–AD.
Comments Due Date
(a) The FAA must receive comments on
this AD action by August 28, 2006.
Affected ADs
(b) None.
rwilkins on PROD1PC63 with PROPOSAL
Applicability
(c) This AD applies to the Boeing airplanes
identified in paragraphs (c)(1) and (c)(2) of
this AD, certificated in any category.
(1) Model 757–200 series airplanes, as
identified in Boeing Service Bulletin 757–24–
0093, dated August 14, 2003.
(2) Model 757–300 series airplanes, as
identified in Boeing Service Bulletin 757–24–
0094, dated April 17, 2003.
Unsafe Condition
(d) This AD results from an in-flight
entertainment (IFE) systems review. We are
issuing this AD to ensure that the flightcrew
is able to turn off electrical power to the IFE
system through utility bus switches in the
flight compartment. The flightcrew’s inability
to turn off power to the IFE system during
a non-normal or emergency situation could
result in the inability to control smoke or
fumes in the airplane flight deck or cabin.
Compliance
(e) You are responsible for having the
actions required by this AD performed within
the compliance times specified, unless the
actions have already been done.
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Installation of Circuit Breakers, Relays, and
Wiring
(f) Within 60 months after the effective
date of this AD, do the applicable actions
specified in paragraphs (f)(1) through (f)(6) of
this AD, in accordance with the
Accomplishment Instructions of Boeing
Service Bulletin 757–24–0093, dated August
14, 2003 (for Model 757–200 series
airplanes); or Boeing Service Bulletin 757–
24–0094, dated April 17, 2003 (Model 757–
300 series airplanes), as applicable.
(1) For all airplanes: Change the wiring at
the P5 and P11 panel assemblies in the flight
compartment, at the P36 panel assembly in
the forward cargo compartment, and at the
P37 and P70 panel assemblies in the main
electronics compartment. Install a new relay
and relay connector, if applicable, at the P36
panel assembly and at the P37 panel
assembly.
(2) For Model 757–200 series airplanes
identified as Group 1 in Boeing Service
Bulletin 757–24–0093, dated August 14,
2003: Install new circuit breakers C3090 and
C3089 at the P37 and P70 panel assemblies,
respectively, in the main electronics
compartment.
(3) For Model 757–200 series airplanes
identified as Groups 21 and 22 in Boeing
Service Bulletin 757–24–0093, dated August
14, 2003: Replace circuit breaker C311 at the
P31 panel assembly in the main electronics
compartment with a higher-rated circuit
breaker.
(4) For Model 757–200 series airplanes
identified as Groups 1 through 20 inclusive
and 23 through 40 inclusive in Boeing
Service Bulletin 757–24–0093, dated August
14, 2003: Replace circuit breakers C311 and
C315 at the P31 and P32 panel assemblies,
respectively, in the main electronics
compartment with higher-rated circuit
breakers.
(5) For Model 757–300 series airplanes
identified as Groups 1 and 4 in Boeing
Service Bulletin 757–24–0094, dated April
17, 2003: Replace circuit breakers C311 and
C315 at the P31 and P32 panel assemblies,
respectively, in the main electronics
compartment with higher-rated circuit
breakers.
(6) For Model 757–300 series airplanes
identified as Groups 1, 2, and 3 in Boeing
Service Bulletin 757–24–0094, dated April
17, 2003: Install new wires between the P5
panel assembly in the flight compartment
and the P36 and P37 panel assemblies in the
main electronics compartment.
Concurrent Requirement for Certain
Airplanes
(g) For the Model 757–200 series airplanes
identified as Groups 8, 9, 12, 15, 20, 21
through 32 inclusive, and 34 through 40
inclusive in Boeing Service Bulletin 757–24–
0093, dated August 14, 2003: Prior to or
concurrently with accomplishing the actions
specified in paragraph (f) of this AD, modify
the wiring of the control module assembly for
the electrical systems, by accomplishing all
of the actions specified in the
Accomplishment Instructions of Boeing
Component Service Bulletin 233N3209–24–
04, Revision 1, dated August 14, 2003, as
applicable.
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Credit for Accomplishment of Previous
Service Bulletin
(h) Modification of the control module
assembly done before the effective date of
this AD in accordance with Boeing
Component Service Bulletin 233N3209–24–
04, dated April 10, 2003, is acceptable for
compliance with the requirements of
paragraph (g) of this AD.
Alternative Methods of Compliance
(AMOCs)
(i)(1) The Manager, Seattle Aircraft
Certification Office, FAA, has the authority to
approve AMOCs for this AD, if requested in
accordance with the procedures found in 14
CFR 39.19.
(2) Before using any AMOC approved in
accordance with § 39.19 on any airplane to
which the AMOC applies, notify the
appropriate principal inspector in the FAA
Flight Standards Certificate Holding District
Office.
Issued in Renton, Washington, on July 3,
2006.
Kalene C. Yanamura,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. E6–11020 Filed 7–12–06; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2006–25327; Directorate
Identifier 2006–NM–116–AD]
RIN 2120–AA64
Airworthiness Directives; Boeing
Model 747–100, 747–100B, 747–100B
SUD, 747–200B, 747–300, 747–400,
747–400D, and 747SR Series Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
SUMMARY: The FAA proposes to revise
an existing airworthiness directive (AD)
that applies to certain Boeing Model
747–100, 747–100B, 747–100B SUD,
747–200B, 747–300, 747–400, 747–
400D, and 747SR series airplanes. The
existing AD currently requires repetitive
inspections to detect cracking of certain
lower lobe fuselage frames, and repair if
necessary. This proposed AD would
specify appropriate service information
for certain corrective actions. This
proposed AD results from reports
indicating that fatigue cracks were
found in lower lobe frames on the left
side of the fuselage. We are proposing
this AD to detect and correct fatigue
cracking of certain lower lobe fuselage
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]]>Agencies
[Federal Register Volume 71, Number 134 (Thursday, July 13, 2006)]
[Proposed Rules]
[Pages 39597-39600]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E6-11020]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2006-25326; Directorate Identifier 2006-NM-081-AD]
RIN 2120-AA64
Airworthiness Directives; Boeing Model 757-200 and -300 Series
Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for certain Boeing Model 757-200 and -300 series airplanes. This
proposed AD would require changes to existing wiring; installation of
new circuit breakers, relays, relay connectors, and wiring; and
replacement of certain circuit breakers with higher-rated circuit
breakers. For certain airplanes, this proposed AD also requires
modification of wiring of the control module assembly for the
electrical systems. This proposed AD results from an in-flight
entertainment (IFE) systems review. We are proposing this AD to ensure
that the flightcrew is able to turn off electrical power to the IFE
system through utility bus switches in the flight compartment. The
flightcrew's inability to turn off power to the IFE system during a
non-normal or emergency situation could result in the inability to
control smoke or fumes in the airplane flight deck or cabin.
DATES: We must receive comments on this proposed AD by August 28, 2006.
ADDRESSES: Use one of the following addresses to submit comments on
this proposed AD.
DOT Docket Web site: Go to https://dms.dot.gov and follow
the instructions for sending your comments electronically.
Government-wide rulemaking Web site: Go to https://
www.regulations.gov and follow the instructions for sending your
comments electronically.
Mail: Docket Management Facility, U.S. Department of
Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401,
Washington, DC 20590.
Fax: (202) 493-2251.
Hand Delivery: Room PL-401 on the plaza level of the
Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
Contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle,
Washington 98124-2207, for the service information identified in this
proposed AD.
FOR FURTHER INFORMATION CONTACT: Natalie Phan-Tran, Aerospace Engineer,
Systems and Equipment Branch, ANM-130L, FAA, Los Angeles Aircraft
Certification Office, 3960 Paramount Boulevard, Lakewood, California
90712-4137; telephone (562) 627-5343; fax (562) 627-5210.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to submit any relevant written data, views, or
arguments regarding this proposed AD. Send your comments to an address
listed in the ADDRESSES section. Include the docket number ``FAA-2006-
25326; Directorate Identifier 2006-NM-081-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of the proposed AD. We will
consider all comments received by the closing date and may amend the
proposed AD in light of those comments.
We will post all comments we receive, without change, to https://
dms.dot.gov, including any personal information you provide. We will
also post a report summarizing each substantive verbal contact with FAA
personnel concerning this proposed AD. Using the search function of
that Web site, anyone can find and read the comments in any of our
dockets, including the name of the individual who sent the comment (or
signed the comment on behalf of an association, business, labor union,
etc.). You may review DOT's complete Privacy Act Statement in the
Federal Register published on April 11, 2000 (65 FR 19477-78), or you
may visit https://dms.dot.gov.
Examining the Docket
You may examine the AD docket on the Internet at https://
dms.dot.gov, or in person at the Docket Management Facility office
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The Docket Management Facility office (telephone (800) 647-
5227) is located on the plaza level of the Nassif Building at the DOT
street address stated in the ADDRESSES section. Comments will be
available in the AD docket shortly after the Docket Management System
receives them.
Discussion
The Federal Aviation Administration (FAA) completed a review of in-
flight entertainment (IFE) systems certified by supplemental type
certificate (STC) and installed on transport category airplanes. The
review focused on the interface between the IFE system and airplane
electrical system, with the objective of determining if any unsafe
conditions exist with regard to the interface. STCs issued between 1992
and 2000 were considered for the review.
The type of IFE systems considered for review were those that
contain video monitors (cathode ray tubes or liquid crystal displays;
either hanging above the aisle or mounted on individual seat backs or
seat trays), or complex circuitry (i.e., power supplies, electronic
distribution boxes, extensive wire routing, relatively high power
consumption, multiple layers of circuit protection, etc.). In addition,
in-seat power supply systems that provide power to more than 20 percent
of the total passenger seats were also considered for the review. The
types of IFE systems not considered for review include systems that
provide only audio signals to each passenger seat, ordinary in-flight
telephone systems (e.g., one telephone handset per group of seats or
bulkhead-mounted telephones), systems that have only a video monitor on
the forward bulkhead(s) (or a projection system) to provide passengers
with basic airplane and flight information, and in-seat power supply
systems that provide power to less than 20 percent of the total
passenger seats.
Items considered during the review include the following:
Can the electrical bus(es) supplying power to the IFE
system be de-energized when necessary without removing power from
systems that may be required for continued safe flight and landing?
Can IFE system power be removed when required without
pulling IFE system circuit breakers (i.e., is there a
[[Page 39598]]
switch (dedicated to the IFE system or a combination of loads) located
in the flight deck or cabin that can be used to remove IFE power?)?
If the IFE system requires changes to flightcrew
procedures, has the airplane flight manual (AFM) been properly amended?
If the IFE system requires changes to cabin crew
procedures, have they been properly amended?
Does the IFE system require periodic or special
maintenance?
In all, we reviewed approximately 180 IFE systems approved by STC.
The review results indicate that potential unsafe conditions exist on
some IFE systems installed on various transport category airplanes.
These conditions can be summarized as:
Electrical bus(es) supplying power to the IFE system
cannot be de-energized when necessary without removing power from
systems that may be required for continued safe flight and landing.
Power cannot be removed from the IFE system when required
without pulling IFE system circuit breakers (i.e., there is no switch
dedicated to the IFE system or combination of systems for the purpose
of removing power).
Installation of the IFE system has affected crew
(flightcrew and/or cabin crew) procedures, but the procedures have not
been properly revised.
The IFE system on the Model 757-200 and -300 series airplanes is
connected to an electrical bus that cannot be deactivated without also
removing power from airplane systems necessary for safe flight and
landing. There is no other means to remove power from the IFE system.
This condition, if not corrected, could result in the flightcrew's
inability to turn off electrical power to the IFE system through
utility bus switches in the flight compartment during a non-normal or
emergency situation, and consequent inability to control smoke or fumes
in the airplane flight deck or cabin.
Other Relevant Rulemaking
We have issued numerous ADs previously that address unsafe
conditions and require corrective actions similar to those that would
be required by the proposed AD. Those ADs and the applicable airplanes
and STC number are identified in the following table.
----------------------------------------------------------------------------------------------------------------
Airplanes STC No. AD reference
----------------------------------------------------------------------------------------------------------------
Airbus Model A340-211 airplanes...... ST09092AC-D............................... AD 2001-18-01, amendment 39-
12427 (66 FR 46939,
September 10, 2001).
Boeing Model 737-200 series airplanes ST00516AT................................. AD 2004-05-27, amendment 39-
13522 (69 FR 12063, March
15, 2004).
Boeing Model 737-300 series airplanes ST00171SE................................. AD 2001-14-10, amendment 39-
12321 (66 FR 36455, July 12,
2001).
Boeing Model 737-700 series airplanes ST09100AC-D, ST09104AC-D, ST09105AC-D, AD 2001-14-12, amendment 39-
ST09106AC-D. 12323 (66 FR 36452, July 12,
2001).
Boeing Model 737-600, -700, -800 Not applicable............................ AD 2003-26-12, amendment 39-
series airplanes and Model 757-200 13411 (69 FR 861, January 7,
and -300 series airplanes. 2004).
Boeing Model 747-100 and -200 series SA8622SW.................................. AD 2001-14-11, amendment 39-
airplanes. 12322 (66 FR 36453, July 12,
2001).
Boeing Model 747-100 and -200 series ST00196SE................................. AD 2001-16-19, amendment 39-
airplanes. 12388 (66 FR 43068, August
17, 2001).
Boeing Model 747-400 series airplanes SA8843SW.................................. AD 2001-14-15, amendment 39-
12326 (66 FR 36447, July 12,
2001).
Boeing Model 747SP series airplanes.. ST09097AC-D............................... AD 2001-14-14, amendment 39-
12325 (66 FR 36449, July 12,
2001).
Boeing Model 757-200 series airplanes SA1727GL.................................. AD 2001-14-01, amendment 39-
12311 (66 FR 36149, July 11,
2001).
Boeing Model 767-200 series airplanes SA4998NM.................................. AD 2001-16-21, amendment 39-
12390 (66 FR 43072, August
17, 2001).
Boeing Model 767-200 series airplanes SA5134NM.................................. AD 2001-16-20, amendment 39-
12389 (66 FR 43066, August
17, 2001).
Boeing Model 767-200 series airplanes ST09022AC-D............................... AD 2001-14-13, amendment 39-
12324 (66 FR 36450, July 12,
2001).
Boeing Model 767-300 series airplanes SA5765NM, SA5978NM........................ AD 2001-16-17, amendment 39-
12386 (66 FR 42937, August
16, 2001).
Boeing Model 767-300 series airplanes SA7019NM-D................................ AD 2001-18-08, amendment 39-
12434 (66 FR 46517,
September 6, 2001).
Boeing Model 767-300 series airplanes ST00118SE................................. AD 2001-14-04, amendment 39-
12314 (66 FR 36699, July 13,
2001).
Boeing Model 767-300 series airplanes ST00157SE................................. AD 2001-16-18, amendment 39-
12387 (66 FR 43070, August
17, 2001).
Boeing Model 767-300 series airplanes ST01869AT-D............................... AD 2002-26-14, amendment 39-
13002 (68 FR 1525, January
13, 2003).
Boeing Model 767-300 series airplanes ST01783AT-D............................... AD 2003-07-15, amendment 39-
13111 (68 FR 18535, April
16, 2003).
Boeing Model 767-200 and -300 series Not applicable............................ AD 2003-14-10, amendment 39-
airplanes. 13229 (68 FR 42583, July 18,
2003; corrected at 68 FR
44385, July 28, 2003).
McDonnell Douglas Model DC-9-51 and SA8026NM.................................. AD 2001-14-02, amendment 39-
DC-9-83 airplanes. 12312 (66 FR 36456, July 12,
2001).
McDonnell Douglas Model DC-10-30 SA8452SW.................................. AD 2001-16-22, amendment 39-
airplanes. 12391 (66 FR 43074, August
17, 2001).
[[Page 39599]]
McDonnell Douglas Model DC-10-30 ST00054SE................................. AD 2001-14-03, amendment 39-
airplanes. 12313 (66 FR 36150, July 11,
2001) (Inadvertently
referenced by the Federal
Register as AD 2001-13-03,
in the Agency Docket Number
heading, on page 36150, in
the third column).
McDonnell Douglas Model MD-11 ST00236LA-D (Santa Barbara Aerospace)..... AD 99-20-08, amendment 39-
airplanes. 11338 (64 FR 52221,
September 28, 1999).
----------------------------------------------------------------------------------------------------------------
Relevant Service Information
We have reviewed Boeing Service Bulletin 757-24-0093, dated August
14, 2003 (for Model 757-200 series airplanes); and Boeing Service
Bulletin 757-24-0094, dated April 17, 2003 (for Model 757-300 series
airplanes). The service bulletins describe the following procedures:
For all airplanes, changing the wiring at the P5 and P11
panel assemblies in the flight compartment, at the P36 panel assembly
in the forward cargo compartment, and at the P37 and P70 panel
assemblies in the main electronics compartment.
For all airplanes, installing a new relay at the P36 panel
assembly in the forward cargo compartment and at the P37 panel assembly
in the main electronics compartment.
For certain Model 757-200 series airplanes, installing new
circuit breakers C3090 and C3089 at the P37 and P70 panel assemblies,
respectively, in the main electronics compartment.
For certain Model 757-200 series airplanes and certain
Model 757-300 series airplanes, replacing circuit breakers C311 and
C315 at the P31 and P32 panel assemblies, respectively, in the main
electronics compartment with higher-rated circuit breakers.
For all Model 757-300 series airplanes, installing a relay
connector at the P37 panel assembly and at the P36 panel assembly.
For certain Model 757-300 series airplanes, installing new
wires between the P5 panel assembly in the flight compartment and the
P36 and P37 panel assemblies in the main electronics compartment.
Accomplishing the actions specified in the service information is
intended to adequately address the unsafe condition.
Concurrent Service Information
For certain Model 757-200 series airplanes, Boeing Service Bulletin
757-24-0093 also recommends concurrent accomplishment of Boeing
Component Service Bulletin 233N3209-24-04, Revision 1, dated August 14,
2003. Boeing Component Service Bulletin 233N3209-24-04 describes
procedures for modifying the wiring of the control module assembly for
the electrical systems. The modification includes installing new wiring
and changing the existing wiring of the control module assembly.
FAA's Determination and Requirements of the Proposed AD
We have evaluated all pertinent information and identified an
unsafe condition that is likely to exist or develop on other airplanes
of this same type design. For this reason, we are proposing this AD,
which would require accomplishing the actions specified in the service
information described previously.
Costs of Compliance
There are about 548 airplanes of the affected design in the
worldwide fleet. This proposed AD would affect about 332 Model 757-200
and 7-300 airplanes of U.S. registry. The following table provides the
estimated costs, at an average labor rate of $80 per hour, for U.S.
operators to comply with this proposed AD. The estimated work hours and
cost of parts in the following table depend on the relay and wiring
configuration of an airplane.
Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
Number of U.S.-
Model Action Work hours Parts Cost per airplane registered Fleet cost
airplanes
--------------------------------------------------------------------------------------------------------------------------------------------------------
757-200 series airplanes............ Installation.......... 38-46 $2,781-$5,917 $5,821-$9,597 318 $1,851,078-$3,051,
846
Concurrent 3 73-90 313-330 318 99,534-104,940
modification.
757-300 series airplanes............ Installation.......... 22 2,080-4,632 3,840-6,392 14 53,760-89,488
--------------------------------------------------------------------------------------------------------------------------------------------------------
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. Subtitle VII, Aviation Programs,
describes in more detail the scope of the Agency's authority.
We are issuing this rulemaking under the authority described in
subtitle VII, part A, subpart III, section 44701, ``General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
Regulatory Findings
We have determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would not
have a substantial direct effect on the States, on the relationship
between the national Government and the States, or on the distribution
of power and responsibilities among the various levels of government.
For the reasons discussed above, I certify that the proposed
regulation:
1. Is not a ``significant regulatory action'' under Executive Order
12866;
2. Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979); and
[[Page 39600]]
3. Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
We prepared a regulatory evaluation of the estimated costs to
comply with this proposed AD and placed it in the AD docket. See the
ADDRESSES section for a location to examine the regulatory evaluation.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Safety.
The Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
2. The Federal Aviation Administration (FAA) amends Sec. 39.13 by
adding the following new airworthiness directive (AD):
Boeing: Docket No. FAA-2006-25326; Directorate Identifier 2006-NM-
081-AD.
Comments Due Date
(a) The FAA must receive comments on this AD action by August
28, 2006.
Affected ADs
(b) None.
Applicability
(c) This AD applies to the Boeing airplanes identified in
paragraphs (c)(1) and (c)(2) of this AD, certificated in any
category.
(1) Model 757-200 series airplanes, as identified in Boeing
Service Bulletin 757-24-0093, dated August 14, 2003.
(2) Model 757-300 series airplanes, as identified in Boeing
Service Bulletin 757-24-0094, dated April 17, 2003.
Unsafe Condition
(d) This AD results from an in-flight entertainment (IFE)
systems review. We are issuing this AD to ensure that the flightcrew
is able to turn off electrical power to the IFE system through
utility bus switches in the flight compartment. The flightcrew's
inability to turn off power to the IFE system during a non-normal or
emergency situation could result in the inability to control smoke
or fumes in the airplane flight deck or cabin.
Compliance
(e) You are responsible for having the actions required by this
AD performed within the compliance times specified, unless the
actions have already been done.
Installation of Circuit Breakers, Relays, and Wiring
(f) Within 60 months after the effective date of this AD, do the
applicable actions specified in paragraphs (f)(1) through (f)(6) of
this AD, in accordance with the Accomplishment Instructions of
Boeing Service Bulletin 757-24-0093, dated August 14, 2003 (for
Model 757-200 series airplanes); or Boeing Service Bulletin 757-24-
0094, dated April 17, 2003 (Model 757-300 series airplanes), as
applicable.
(1) For all airplanes: Change the wiring at the P5 and P11 panel
assemblies in the flight compartment, at the P36 panel assembly in
the forward cargo compartment, and at the P37 and P70 panel
assemblies in the main electronics compartment. Install a new relay
and relay connector, if applicable, at the P36 panel assembly and at
the P37 panel assembly.
(2) For Model 757-200 series airplanes identified as Group 1 in
Boeing Service Bulletin 757-24-0093, dated August 14, 2003: Install
new circuit breakers C3090 and C3089 at the P37 and P70 panel
assemblies, respectively, in the main electronics compartment.
(3) For Model 757-200 series airplanes identified as Groups 21
and 22 in Boeing Service Bulletin 757-24-0093, dated August 14,
2003: Replace circuit breaker C311 at the P31 panel assembly in the
main electronics compartment with a higher-rated circuit breaker.
(4) For Model 757-200 series airplanes identified as Groups 1
through 20 inclusive and 23 through 40 inclusive in Boeing Service
Bulletin 757-24-0093, dated August 14, 2003: Replace circuit
breakers C311 and C315 at the P31 and P32 panel assemblies,
respectively, in the main electronics compartment with higher-rated
circuit breakers.
(5) For Model 757-300 series airplanes identified as Groups 1
and 4 in Boeing Service Bulletin 757-24-0094, dated April 17, 2003:
Replace circuit breakers C311 and C315 at the P31 and P32 panel
assemblies, respectively, in the main electronics compartment with
higher-rated circuit breakers.
(6) For Model 757-300 series airplanes identified as Groups 1,
2, and 3 in Boeing Service Bulletin 757-24-0094, dated April 17,
2003: Install new wires between the P5 panel assembly in the flight
compartment and the P36 and P37 panel assemblies in the main
electronics compartment.
Concurrent Requirement for Certain Airplanes
(g) For the Model 757-200 series airplanes identified as Groups
8, 9, 12, 15, 20, 21 through 32 inclusive, and 34 through 40
inclusive in Boeing Service Bulletin 757-24-0093, dated August 14,
2003: Prior to or concurrently with accomplishing the actions
specified in paragraph (f) of this AD, modify the wiring of the
control module assembly for the electrical systems, by accomplishing
all of the actions specified in the Accomplishment Instructions of
Boeing Component Service Bulletin 233N3209-24-04, Revision 1, dated
August 14, 2003, as applicable.
Credit for Accomplishment of Previous Service Bulletin
(h) Modification of the control module assembly done before the
effective date of this AD in accordance with Boeing Component
Service Bulletin 233N3209-24-04, dated April 10, 2003, is acceptable
for compliance with the requirements of paragraph (g) of this AD.
Alternative Methods of Compliance (AMOCs)
(i)(1) The Manager, Seattle Aircraft Certification Office, FAA,
has the authority to approve AMOCs for this AD, if requested in
accordance with the procedures found in 14 CFR 39.19.
(2) Before using any AMOC approved in accordance with Sec.
39.19 on any airplane to which the AMOC applies, notify the
appropriate principal inspector in the FAA Flight Standards
Certificate Holding District Office.
Issued in Renton, Washington, on July 3, 2006.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E6-11020 Filed 7-12-06; 8:45 am]
BILLING CODE 4910-13-P
