Airworthiness Directives; Teledyne Continental Motors GTSIO-520 Series Reciprocating Engines, 56355-56357 [05-19149]
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Federal Register / Vol. 70, No. 186 / Tuesday, September 27, 2005 / Rules and Regulations
56355
TABLE 1.—SERVICE INFORMATION
Inspect in accordance with either—
The Accomplishment Instructions of Boeing Service Bulletin 737–53–
1117, Revision 1, dated April 6, 1989—
Figure 17 of the special attention service bulletin—
A detailed inspection for cracks in the fuselage lower skin in the area
of the electronics bay cooling duct cutout.
An eddy current inspection for cracks of the exhaust port duct cutout
edge and the 6 fastener locations;
An eddy current and open-hole probe inspection for cracks of the satellite holes; and
A general visual inspection for corrosion of the area under the repair.
Corrective Actions
(j) If any crack at the equipment cooling
duct cutout is found that is less than 3 inches
in length during the inspection required by
paragraph (i) of this AD: Before further flight,
stop-drill the crack or cracks and install an
external repair doubler in accordance with
the Accomplishment Instructions of Boeing
Service Bulletin 737–53–1117, Revision 1,
dated April 6, 1989; or repair in accordance
with Part III of the special attention service
bulletin. If the special attention service
bulletin specifies to contact Boeing for
appropriate Action: Before further flight,
repair using a method approved in
accordance with paragraph (m) of this AD.
Accomplishment of the repair terminates the
repetitive inspection requirements of
paragraph (g) of this AD for the repaired area.
(k) If any corrosion is found, or if any crack
is found that is 3 inches in length or greater
during the inspection required by paragraph
(i) of this AD: Before further flight, repair
using a method approved in accordance with
paragraph (m) of this AD.
Note 1: For the purposes of this AD, a
general visual inspection is: ‘‘A visual
examination of an interior or exterior area,
installation, or assembly to detect obvious
damage, failure, or irregularity. This level of
inspection is made from within touching
distance unless otherwise specified. A mirror
may be necessary to ensure visual access to
all surfaces in the inspection area. This level
of inspection is made under normally
available lighting conditions such as
daylight, hangar lighting, flashlight, or
droplight and may require removal or
opening of access panels or doors. Stands,
ladders, or platforms may be required to gain
proximity to the area being checked.’’
Note 2: For the purposes of this AD, a
detailed inspection is: ‘‘An intensive
examination of a specific item, installation,
or assembly to detect damage, failure, or
irregularity. Available lighting is normally
supplemented with a direct source of good
lighting at an intensity deemed appropriate.
Inspection aids such as mirror, magnifying
lenses, etc., may be necessary. Surface
cleaning and elaborate procedures may be
required.’’
Optional Terminating Action
(l) Installing preventive modification
doublers in accordance with the special
attention service bulletin, including the
additional eddy current inspection with the
fasteners removed (with no crack finding),
terminates the repetitive inspection
requirements of paragraph (g) of this AD.
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14:40 Sep 26, 2005
Jkt 205001
Where Figure 2 of the special attention
service bulletin specifies to ‘‘eddy current
countersink inspect and open hole probe
inspect the 16 satellite holes,’’ and the
airplane has an external repair doubler
installed in accordance with the
Accomplishment Instructions of Boeing
Service Bulletin 737–53–1117, Revision 1,
dated April 6, 1989; that inspection is not
required by this AD. If any crack is found
during the eddy current inspection specified
by this paragraph: Before further flight,
discontinue the preventive modification and
do the applicable actions in paragraph (h) of
this AD.
Alternative Methods of Compliance
(m)(1) In accordance with 14 CFR 39.19,
the Manager, Seattle Aircraft Certification
Office (ACO), is authorized to approve
alternative methods of compliance (AMOCs)
for this AD.
(2) An AMOC that provides an acceptable
level of safety may be used for any repair
required by this AD, if it is approved by an
Authorized Representative for the Boeing
Delegation Option Authorization
Organization who has been authorized by the
Manager, Seattle ACO, to make those
findings.
(3) 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.
Material Incorporated by Reference
(n) You must use Boeing Service Bulletin
737–53–1117, Revision 1, dated April 6,
1989; and Boeing Special Attention Service
Bulletin 737–53–1230, dated June 13, 2002;
as applicable, to perform the actions that are
required by this AD, unless the AD specifies
otherwise. The Director of the Federal
Register approved the incorporation by
reference of these documents in accordance
with 5 U.S.C. 552(a) and 1 CFR part 51.
Contact Boeing Commercial Airplanes, P.O.
Box 3707, Seattle, Washington 98124–2207,
for a copy of this service information. You
may review copies at the Docket Management
Facility, U.S. Department of Transportation,
400 Seventh Street SW., room PL–401, Nassif
Building, Washington, DC; on the Internet at
https://dms.dot.gov; or at the National
Archives and Records Administration
(NARA). For information on the availability
of this material at the NARA, call (202) 741–
6030, or go to https://www.archives.gov/
federal_register/code_of_federal_regulations/
ibr_locations.html.
PO 00000
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Issued in Renton, Washington, on
September 15, 2005.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 05–18911 Filed 9–26–05; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2005–20850; Directorate
Identifier 2005–NE–05–AD; Amendment 39–
14297; AD 2005–20–04]
RIN 2120–AA64
Airworthiness Directives; Teledyne
Continental Motors GTSIO–520 Series
Reciprocating Engines
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
SUMMARY: The FAA is adopting a new
airworthiness directive (AD) for
Teledyne Continental Motors (TCM)
GTSIO–520 series reciprocating engines.
This AD requires initial and repetitive
visual inspections of the starter adapter
assembly and crankshaft gear. This AD
also requires unscheduled visual
inspections of the starter adapter
assembly and crankshaft gear due to a
rough-running engine. This AD also
requires replacement of the starter
adapter shaft gear needle bearing with a
certain bushing. Also, this AD requires
installation of a certain TCM service kit
at the next engine overhaul, or at the
next starter adapter replacement,
whichever occurs first. This AD results
from six service difficulty reports and
one fatal accident report received
related to failed starter adapter
assemblies. We are issuing this AD to
prevent failure of the starter adapter
assembly and or crankshaft gear,
resulting in failure of the engine and
possible forced landing.
DATES: This AD becomes effective
November 1, 2005. The Director of the
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56356
Federal Register / Vol. 70, No. 186 / Tuesday, September 27, 2005 / Rules and Regulations
Federal Register approved the
incorporation by reference of certain
publications listed in the regulations as
of November 1, 2005.
ADDRESSES: You can get the service
information identified in this AD from
Teledyne Continental Motors, Inc., PO
Box 90, Mobile, AL 36601; telephone
(251) 438–3411. For the Teledyne
Continental Motors Web site: Go to
https://www.TCMLINK.com.
You may examine the AD docket on
the Internet at https://dms.dot.gov or in
Room PL–401 on the plaza level of the
Nassif Building, 400 Seventh Street,
SW., Washington, DC.
FOR FURTHER INFORMATION CONTACT: Jerry
Robinette, Senior Engineer, Propulsion,
Atlanta Aircraft Certification Office,
FAA, Small Airplane Directorate, One
Crown Center, 1895 Phoenix Blvd.,
Suite 450, Atlanta, GA 30349;
telephone: (770) 703–6096, fax: (770)
703–6097.
SUPPLEMENTARY INFORMATION: The FAA
proposed to amend 14 CFR part 39 with
a proposed airworthiness directive (AD).
The proposed AD applies to TCM
GTSIO–520 series reciprocating engines.
We published the proposed AD in the
Federal Register on January 13, 2005
(70 FR 2333). That action proposed to
require:
• Before further flight, adding a
placard to the instrument panel within
view of the pilot that states, in 1⁄4 inchhigh or higher characters, ‘‘In
accordance with AD (number to be
provided), the pilot must report a roughrunning engine that cannot be cleared
by adjustment of the engine controls;
particularly the fuel mixture setting, to
maintenance personnel, immediately
after landing.’’
• Initial and repetitive visual
inspections of the starter adapter
assembly and crankshaft gear, and
replacement of components as
necessary.
• Unscheduled visual inspections of
the starter adapter assembly and
crankshaft gear due to a rough-running
engine, and replacement of components
as necessary.
• Replacement of the starter adapter
shaft gear needle bearing, P/N 537721
with bushing, P/N 654472.
• Installation of TCM service kit, P/N
EQ6642R, at next engine overhaul, or at
next starter adapter replacement,
whichever occurs first.
Examining the AD Docket
You may examine the docket that
contains the AD, any comments
received, and any final disposition in
person at the Docket Management
Facility Docket Offices between 9 a.m.
VerDate Aug<31>2005
14:40 Sep 26, 2005
Jkt 205001
and 5 p.m., Monday through Friday,
except Federal holidays. The Docket
Office (telephone (800) 647–5227) is
located on the plaza level of the
Department of Transportation Nassif
Building at the street address stated in
ADDRESSES. Comments will be available
in the AD docket shortly after the DMS
receives them.
Comments
We provided the public the
opportunity to participate in the
development of this AD. We have
considered the comments received.
Request To Delete Requirement for a
Placard
Two commenters request that we
delete the requirement for a placard in
the cockpit. The placard would state
that the pilot must report a roughrunning engine that cannot be cleared
by adjustment of the engine controls;
particularly the fuel mixture setting, to
maintenance personnel, immediately
after landing. The commenters state that
the placard provides no useful in-flight
information. One of the commenters
states that there is no chance that the
commenter would depart with a rough
running engine. We agree that the
placard provides no useful in-flight
information. Therefore, we have
removed the placard requirement from
the AD.
Parts Costs in the NPRM Are
Underestimated
One commenter states that the parts
costs in the NPRM are underestimated
and are actually much higher. We
disagree. However, we found that TCM
agreed to reduce the prices for these
parts. The price for the TCM service kit,
P/N EQ6642R is reduced from $2,477 to
$1,858, and the price for the bushing is
reduced from $105 to $53.
Revised Mandatory Service Bulletin
The proposed AD referenced TCM
Mandatory Service Bulletin (MSB) No.
MSB94–4E, dated January 24, 2005.
Since we issued the NPRM, TCM
revised that bulletin. This AD references
the revised SB, TCM MSB No. MSB94–
4F, dated July 5, 2005.
Conclusion
We carefully reviewed the available
data, including the comments received,
and determined that air safety and the
public interest require adopting the AD
with the changes described previously.
We determined that these changes will
neither increase the economic burden
on any operator nor increase the scope
of the AD.
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Fmt 4700
Sfmt 4700
Costs of Compliance
About 5,300 TCM GTSIO–520 series
reciprocating engines of the affected
design are in the worldwide fleet. We
estimate that 4,240 engines installed on
airplanes of U.S. registry will be affected
by this AD. We also estimate that it will
take about one work hour per engine to
perform one of the inspections, and
about one work hour per engine to
perform the bushing installation. We
also estimate that it will take about six
work hours per engine to install TCM
service kit, P/N EQ6642R. The average
labor rate is $65 per work hour. We
estimate that about 25% (1,060) of the
engines will require an unscheduled
(rough-running engine) inspection, that
each engine has eight 100-hour
inspections per year, and two 400-hour
inspections per year. We also estimate
that about 50% (2,120) of the engines
will require the bushing installed and
TCM service kit, P/N EQ6642R
installed. Required bushings will cost
about $53 per engine and required
service kits will cost about $1,858 per
engine. Based on these figures, we
estimate the total cost of the AD to U.S.
operators to be $7,840,820.
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 AD will
not have federalism implications under
Executive Order 13132. This AD will
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 this AD:
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Federal Register / Vol. 70, No. 186 / Tuesday, September 27, 2005 / Rules and Regulations
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866;
(2) Is not a ‘‘significant rule’’ under
DOT Regulatory Policies and Procedures
(44 FR 11034, February 26, 1979); and
(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 summary of the costs
to comply with this AD and placed it in
the AD Docket. You may get a copy of
this summary at the address listed
under ADDRESSES.
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.
List of Subjects in 14 CFR Part 39
Unscheduled Inspections for Rough-Running
Engines
(g) For any engine that experiences rough
running conditions regardless of time-inservice (TIS), do the following:
(1) Before further flight, perform the
inspection procedures specified in Part 1 and
Part 3 of TCM MSB No. MSB94–4F, dated
July 5, 2005, and replace components as
necessary.
(2) An engine is considered rough-running
if there is a sudden increase in the perceived
vibration levels that cannot be cleared by
adjustment of the engine controls;
particularly the fuel mixture setting.
Information on a rough running engines can
be found in the aircraft manufacturer’s
Airplane Flight Manual, Pilot’s Operating
Handbook, or Aircraft Owners Manual.
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
Adoption of the Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the Federal Aviation Administration
amends 14 CFR part 39 as follows:
I
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
I
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive:
I
2005–20–04 Teledyne Continental Motors:
Amendment 39–14297. Docket No.
FAA–2005–20850; Directorate Identifier
2005–NE–05—AD.
Effective Date
(a) This airworthiness directive (AD)
becomes effective November 1, 2005.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Teledyne
Continental Motors (TCM) GTSIO–520 series
reciprocating engines. These engines are
installed on, but not limited to, Twin
Commander (formerly Aero Commander)
model 685, Cessna model 404, 411 series,
and 421 series, British Aerospace, Aircraft
Group, Scottish Division model B.206 series
2 and Aeronautica Macchi, model AM–3
airplanes.
Unsafe Condition
(d) This AD results from six service
difficulty reports and one fatal accident
report received related to failed starter
adapter assemblies. We are issuing this AD
to prevent failure of the starter adapter
assembly and or crankshaft gear, resulting in
failure of the engine and possible forced
landing.
VerDate Aug<31>2005
14:40 Sep 26, 2005
Jkt 205001
Starter Adapter Shaft Gear Needle Bearing
Replacement
(f) If, during an inspection required by
paragraph (g), (h), (i), or (j) of this AD, you
find needle bearing, part number (P/N)
537721, installed in the crankcase, replace it
with bushing, P/N 654472, before
reassembling components. Use the bushing
installation procedure specified in Part 4 of
TCM Mandatory Service Bulletin (MSB) No.
MSB94–4F, dated July 5, 2005.
100-Hour and Annual Inspections
(h) For any engine, at the next 100-hour or
annual inspection, whichever occurs first, do
the following:
(1) Perform the inspection procedures
specified in Part 2 of TCM MSB No. MSB94–
4F, dated July 5, 2005, and replace
components as necessary.
(2) Thereafter, at each 100-hour inspection,
(plus or minus 10 hours), and annual
inspection, perform repetitive inspections
and component replacements as specified in
paragraph (h)(1) of this AD.
Starter Adapters With 400 Hours or More
Time-In-Service (TIS) or Unknown TIS
(i) For any starter adapter with 400 hours
or more TIS or unknown TIS on the effective
date of this AD, do the following:
(1) Within 25 hours TIS, perform the
inspection procedures specified in Part 3 of
TCM MSB No. MSB94–4F, dated July 5,
2005, and replace components as necessary.
(2) Thereafter, at 400-hour TIS intervals,
(plus or minus 10 hours), perform repetitive
inspections and component replacements
specified in Part 3 of TCM MSB No. MSB94–
4F, dated July 5, 2005, and replace
components as necessary.
Starter Adapters With Fewer Than 400
Hours TIS
(j) For any starter adapter with fewer than
400 hours TIS on the effective date of this
AD, do the following:
(1) Upon accumulation of 400 hours TIS,
(plus or minus 10 hours), perform the
inspection procedures specified in Part 3 of
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Sfmt 4700
56357
TCM MSB No. MSB94–4F, dated July 5,
2005, and replace components as necessary.
(2) Thereafter, at 400-hour TIS intervals,
(plus or minus 10 hours), perform repetitive
inspections and component replacements, as
specified in Part 3 of TCM MSB No. MSB94–
4F, dated July 5, 2005, and replace
components as necessary.
Installation of TCM Service Kit, EQ6642R
(k) At the next engine overhaul or starter
adapter replacement after the effective date of
this AD, whichever occurs first, do the
following:
(1) Install TCM service kit, P/N EQ6642R.
Use the service kit installation procedures
specified in Part 5 of TCM MSB No. MSB94–
4F, dated July 5, 2005.
(2) Continue performing the inspections
and component replacements specified in
paragraphs (g), (h), and (i) of this AD.
Prohibition of Special Flight Permits for
Rough-Running Engines
(l) Special flight permits are prohibited for
rough-running engines described in
paragraph (g)(2) of this AD.
Alternative Methods of Compliance
(m) The Manager, Atlanta Aircraft
Certification Office, has the authority to
approve alternative methods of compliance
for this AD if requested using the procedures
found in 14 CFR 39.19.
Related Information
(n) European Aviation Safety Agency AD
2004–0006, dated December 15, 2004, also
addresses the subject of this AD.
Material Incorporated by Reference
(o) You must use Teledyne Continental
Motors Mandatory Service Bulletin No.
MSB94–4F, dated July 5, 2005, to perform the
actions required by this AD. The Director of
the Federal Register approved the
incorporation by reference of this service
bulletin in accordance with 5 U.S.C. 552(a)
and 1 CFR part 51. Contact Teledyne
Continental Motors, Inc., PO Box 90, Mobile,
AL 36601; telephone (251) 438–3411 for a
copy of this service information. For the
Teledyne Continental Motors Web site: Go to
https://www.TCMLINK.com. You may review
copies at the Docket Management Facility;
U.S. Department of Transportation, 400
Seventh Street, SW., Nassif Building, Room
PL–401, Washington, DC 20590–0001, on the
Internet at https://dms.dot.gov, or at the
National Archives and Records
Administration (NARA). For information on
the availability of this material at NARA, call
202–741–6030, or go to: https://
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued in Burlington, Massachusetts, on
September 20, 2005.
Francis A. Favara,
Acting Manager, Engine and Propeller
Directorate, Aircraft Certification Service.
[FR Doc. 05–19149 Filed 9–26–05; 8:45 am]
BILLING CODE 4910–13–P
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27SER1
]]>Agencies
[Federal Register Volume 70, Number 186 (Tuesday, September 27, 2005)]
[Rules and Regulations]
[Pages 56355-56357]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 05-19149]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2005-20850; Directorate Identifier 2005-NE-05-AD;
Amendment 39-14297; AD 2005-20-04]
RIN 2120-AA64
Airworthiness Directives; Teledyne Continental Motors GTSIO-520
Series Reciprocating Engines
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
Teledyne Continental Motors (TCM) GTSIO-520 series reciprocating
engines. This AD requires initial and repetitive visual inspections of
the starter adapter assembly and crankshaft gear. This AD also requires
unscheduled visual inspections of the starter adapter assembly and
crankshaft gear due to a rough-running engine. This AD also requires
replacement of the starter adapter shaft gear needle bearing with a
certain bushing. Also, this AD requires installation of a certain TCM
service kit at the next engine overhaul, or at the next starter adapter
replacement, whichever occurs first. This AD results from six service
difficulty reports and one fatal accident report received related to
failed starter adapter assemblies. We are issuing this AD to prevent
failure of the starter adapter assembly and or crankshaft gear,
resulting in failure of the engine and possible forced landing.
DATES: This AD becomes effective November 1, 2005. The Director of the
[[Page 56356]]
Federal Register approved the incorporation by reference of certain
publications listed in the regulations as of November 1, 2005.
ADDRESSES: You can get the service information identified in this AD
from Teledyne Continental Motors, Inc., PO Box 90, Mobile, AL 36601;
telephone (251) 438-3411. For the Teledyne Continental Motors Web site:
Go to https://www.TCMLINK.com.
You may examine the AD docket on the Internet at https://dms.dot.gov
or in Room PL-401 on the plaza level of the Nassif Building, 400
Seventh Street, SW., Washington, DC.
FOR FURTHER INFORMATION CONTACT: Jerry Robinette, Senior Engineer,
Propulsion, Atlanta Aircraft Certification Office, FAA, Small Airplane
Directorate, One Crown Center, 1895 Phoenix Blvd., Suite 450, Atlanta,
GA 30349; telephone: (770) 703-6096, fax: (770) 703-6097.
SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39
with a proposed airworthiness directive (AD). The proposed AD applies
to TCM GTSIO-520 series reciprocating engines. We published the
proposed AD in the Federal Register on January 13, 2005 (70 FR 2333).
That action proposed to require:
Before further flight, adding a placard to the instrument
panel within view of the pilot that states, in \1/4\ inch-high or
higher characters, ``In accordance with AD (number to be provided), the
pilot must report a rough-running engine that cannot be cleared by
adjustment of the engine controls; particularly the fuel mixture
setting, to maintenance personnel, immediately after landing.''
Initial and repetitive visual inspections of the starter
adapter assembly and crankshaft gear, and replacement of components as
necessary.
Unscheduled visual inspections of the starter adapter
assembly and crankshaft gear due to a rough-running engine, and
replacement of components as necessary.
Replacement of the starter adapter shaft gear needle
bearing, P/N 537721 with bushing, P/N 654472.
Installation of TCM service kit, P/N EQ6642R, at next
engine overhaul, or at next starter adapter replacement, whichever
occurs first.
Examining the AD Docket
You may examine the docket that contains the AD, any comments
received, and any final disposition in person at the Docket Management
Facility Docket Offices between 9 a.m. and 5 p.m., Monday through
Friday, except Federal holidays. The Docket Office (telephone (800)
647-5227) is located on the plaza level of the Department of
Transportation Nassif Building at the street address stated in
ADDRESSES. Comments will be available in the AD docket shortly after
the DMS receives them.
Comments
We provided the public the opportunity to participate in the
development of this AD. We have considered the comments received.
Request To Delete Requirement for a Placard
Two commenters request that we delete the requirement for a placard
in the cockpit. The placard would state that the pilot must report a
rough-running engine that cannot be cleared by adjustment of the engine
controls; particularly the fuel mixture setting, to maintenance
personnel, immediately after landing. The commenters state that the
placard provides no useful in-flight information. One of the commenters
states that there is no chance that the commenter would depart with a
rough running engine. We agree that the placard provides no useful in-
flight information. Therefore, we have removed the placard requirement
from the AD.
Parts Costs in the NPRM Are Underestimated
One commenter states that the parts costs in the NPRM are
underestimated and are actually much higher. We disagree. However, we
found that TCM agreed to reduce the prices for these parts. The price
for the TCM service kit, P/N EQ6642R is reduced from $2,477 to $1,858,
and the price for the bushing is reduced from $105 to $53.
Revised Mandatory Service Bulletin
The proposed AD referenced TCM Mandatory Service Bulletin (MSB) No.
MSB94-4E, dated January 24, 2005. Since we issued the NPRM, TCM revised
that bulletin. This AD references the revised SB, TCM MSB No. MSB94-4F,
dated July 5, 2005.
Conclusion
We carefully reviewed the available data, including the comments
received, and determined that air safety and the public interest
require adopting the AD with the changes described previously. We
determined that these changes will neither increase the economic burden
on any operator nor increase the scope of the AD.
Costs of Compliance
About 5,300 TCM GTSIO-520 series reciprocating engines of the
affected design are in the worldwide fleet. We estimate that 4,240
engines installed on airplanes of U.S. registry will be affected by
this AD. We also estimate that it will take about one work hour per
engine to perform one of the inspections, and about one work hour per
engine to perform the bushing installation. We also estimate that it
will take about six work hours per engine to install TCM service kit,
P/N EQ6642R. The average labor rate is $65 per work hour. We estimate
that about 25% (1,060) of the engines will require an unscheduled
(rough-running engine) inspection, that each engine has eight 100-hour
inspections per year, and two 400-hour inspections per year. We also
estimate that about 50% (2,120) of the engines will require the bushing
installed and TCM service kit, P/N EQ6642R installed. Required bushings
will cost about $53 per engine and required service kits will cost
about $1,858 per engine. Based on these figures, we estimate the total
cost of the AD to U.S. operators to be $7,840,820.
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 AD will not have federalism
implications under Executive Order 13132. This AD will 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 this AD:
[[Page 56357]]
(1) Is not a ``significant regulatory action'' under Executive
Order 12866;
(2) Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979); and
(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 summary of the costs to comply with this AD and
placed it in the AD Docket. You may get a copy of this summary at the
address listed under ADDRESSES.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, under the authority delegated to me by the Administrator,
the Federal Aviation Administration amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
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]
0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive:
2005-20-04 Teledyne Continental Motors: Amendment 39-14297. Docket
No. FAA-2005-20850; Directorate Identifier 2005-NE-05--AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective November
1, 2005.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Teledyne Continental Motors (TCM) GTSIO-
520 series reciprocating engines. These engines are installed on,
but not limited to, Twin Commander (formerly Aero Commander) model
685, Cessna model 404, 411 series, and 421 series, British
Aerospace, Aircraft Group, Scottish Division model B.206 series 2
and Aeronautica Macchi, model AM-3 airplanes.
Unsafe Condition
(d) This AD results from six service difficulty reports and one
fatal accident report received related to failed starter adapter
assemblies. We are issuing this AD to prevent failure of the starter
adapter assembly and or crankshaft gear, resulting in failure of the
engine and possible forced landing.
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.
Starter Adapter Shaft Gear Needle Bearing Replacement
(f) If, during an inspection required by paragraph (g), (h),
(i), or (j) of this AD, you find needle bearing, part number (P/N)
537721, installed in the crankcase, replace it with bushing, P/N
654472, before reassembling components. Use the bushing installation
procedure specified in Part 4 of TCM Mandatory Service Bulletin
(MSB) No. MSB94-4F, dated July 5, 2005.
Unscheduled Inspections for Rough-Running Engines
(g) For any engine that experiences rough running conditions
regardless of time-in-service (TIS), do the following:
(1) Before further flight, perform the inspection procedures
specified in Part 1 and Part 3 of TCM MSB No. MSB94-4F, dated July
5, 2005, and replace components as necessary.
(2) An engine is considered rough-running if there is a sudden
increase in the perceived vibration levels that cannot be cleared by
adjustment of the engine controls; particularly the fuel mixture
setting. Information on a rough running engines can be found in the
aircraft manufacturer's Airplane Flight Manual, Pilot's Operating
Handbook, or Aircraft Owners Manual.
100-Hour and Annual Inspections
(h) For any engine, at the next 100-hour or annual inspection,
whichever occurs first, do the following:
(1) Perform the inspection procedures specified in Part 2 of TCM
MSB No. MSB94-4F, dated July 5, 2005, and replace components as
necessary.
(2) Thereafter, at each 100-hour inspection, (plus or minus 10
hours), and annual inspection, perform repetitive inspections and
component replacements as specified in paragraph (h)(1) of this AD.
Starter Adapters With 400 Hours or More Time-In-Service (TIS) or
Unknown TIS
(i) For any starter adapter with 400 hours or more TIS or
unknown TIS on the effective date of this AD, do the following:
(1) Within 25 hours TIS, perform the inspection procedures
specified in Part 3 of TCM MSB No. MSB94-4F, dated July 5, 2005, and
replace components as necessary.
(2) Thereafter, at 400-hour TIS intervals, (plus or minus 10
hours), perform repetitive inspections and component replacements
specified in Part 3 of TCM MSB No. MSB94-4F, dated July 5, 2005, and
replace components as necessary.
Starter Adapters With Fewer Than 400 Hours TIS
(j) For any starter adapter with fewer than 400 hours TIS on the
effective date of this AD, do the following:
(1) Upon accumulation of 400 hours TIS, (plus or minus 10
hours), perform the inspection procedures specified in Part 3 of TCM
MSB No. MSB94-4F, dated July 5, 2005, and replace components as
necessary.
(2) Thereafter, at 400-hour TIS intervals, (plus or minus 10
hours), perform repetitive inspections and component replacements,
as specified in Part 3 of TCM MSB No. MSB94-4F, dated July 5, 2005,
and replace components as necessary.
Installation of TCM Service Kit, EQ6642R
(k) At the next engine overhaul or starter adapter replacement
after the effective date of this AD, whichever occurs first, do the
following:
(1) Install TCM service kit, P/N EQ6642R. Use the service kit
installation procedures specified in Part 5 of TCM MSB No. MSB94-4F,
dated July 5, 2005.
(2) Continue performing the inspections and component
replacements specified in paragraphs (g), (h), and (i) of this AD.
Prohibition of Special Flight Permits for Rough-Running Engines
(l) Special flight permits are prohibited for rough-running
engines described in paragraph (g)(2) of this AD.
Alternative Methods of Compliance
(m) The Manager, Atlanta Aircraft Certification Office, has the
authority to approve alternative methods of compliance for this AD
if requested using the procedures found in 14 CFR 39.19.
Related Information
(n) European Aviation Safety Agency AD 2004-0006, dated December
15, 2004, also addresses the subject of this AD.
Material Incorporated by Reference
(o) You must use Teledyne Continental Motors Mandatory Service
Bulletin No. MSB94-4F, dated July 5, 2005, to perform the actions
required by this AD. The Director of the Federal Register approved
the incorporation by reference of this service bulletin in
accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Teledyne
Continental Motors, Inc., PO Box 90, Mobile, AL 36601; telephone
(251) 438-3411 for a copy of this service information. For the
Teledyne Continental Motors Web site: Go to https://www.TCMLINK.com.
You may review copies at the Docket Management Facility; U.S.
Department of Transportation, 400 Seventh Street, SW., Nassif
Building, Room PL-401, Washington, DC 20590-0001, on the Internet at
https://dms.dot.gov, or at the National Archives and Records
Administration (NARA). For information on the availability of this
material at NARA, call 202-741-6030, or go to: https://
www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued in Burlington, Massachusetts, on September 20, 2005.
Francis A. Favara,
Acting Manager, Engine and Propeller Directorate, Aircraft
Certification Service.
[FR Doc. 05-19149 Filed 9-26-05; 8:45 am]
BILLING CODE 4910-13-P
