Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model S-92A Helicopters, 66207-66209 [2011-27670]
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Federal Register / Vol. 76, No. 207 / Wednesday, October 26, 2011 / Proposed Rules
because it addresses an unsafe condition
that is likely to exist or develop on
products identified in this rulemaking
action.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
The Proposed Amendment
Accordingly, pursuant to the
authority delegated to me by the
Administrator, the Federal Aviation
Administration proposes to amend part
39 of the Federal Aviation Regulations
(14 CFR part 39) as follows:
PART 39—AIRWORTHINESS
DIRECTIVES
Issued in Fort Worth, Texas, on October 7,
2011.
Lance T. Gant,
Acting Manager, Rotorcraft Directorate,
Aircraft Certification Service.
[FR Doc. 2011–27659 Filed 10–25–11; 8:45 am]
1. The authority citation for part 39
continues to read as follows:
BILLING CODE 4910–13–P
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
‘‘Emergency Procedures (Part 1, Section III)’’
contained in Sikorsky RFM, Supplement No.
41, dated September 6, 2005.
(c) To request a different method of
compliance or a different compliance time
for this AD, follow the procedures in 14 CFR
39.19. Contact the Manager, Boston Aircraft
Certification Office, FAA, ATTN: Caspar
Wang, Aviation Safety Engineer, 12 New
England Executive Park, Burlington, MA
01803, telephone (781) 238–7799, fax (781)
238–7170, for information about previously
approved alternative methods of compliance.
(d) The Joint Aircraft System/Component
(JASC) Code is 6321: Main Rotor Brake.
[Amended]
DEPARTMENT OF TRANSPORTATION
jlentini on DSK4TPTVN1PROD with PROPOSALS
2. Section 39.13 is amended by
adding a new airworthiness directive
(AD) to read as follows:
Federal Aviation Administration
Sikorsky Aircraft Corporation: Docket No.
FAA–2010–0517; Directorate Identifier
2009–SW–73–AD.
Applicability: Model S–76A helicopters,
with an electric rotor brake (ERB), part
number (P/N) 76363–09100–012, installed,
certificated in any category.
Compliance: Required as indicated, unless
accomplished previously.
To prevent overheating of the ERB
assembly, ignition of the ERB hydraulic fluid,
fire in the main gearbox area, and subsequent
loss of control of the helicopter, do the
following:
(a) Within 120 days, modify the ERB by
installing:
(1) Warning relay system parts contained
in modification kit, part number (P/N)
76070–55023–011, and operationally testing
the ERB system in accordance with
paragraphs 2.A. through 2.F., of Sikorsky
Customer Service Bulletin No. 76–66–10B,
Revision 1 (pages 2 through 8), dated July 30,
1981, and Revision 2, (pages 1 and 9 through
13) dated November 25, 1981;
(2) Circuit breaker and diodes contained in
ERB circuit modification kit, P/N 76070–
55033–012, and operationally testing the ERB
system in accordance with paragraph B.
through F. of Sikorsky Customer Service
Notice 76–113, dated June 1, 1983; and
(3) Manifold, relay box, junction box, righthand relay panel, and wiring harness parts
contained in ERB modification kit, P/N
76070–55207–011, and operationally testing
the ERB system in accordance with
paragraphs 3.B. through 3.I. of the
Accomplishment Instructions of Sikorsky
Alert Service Bulletin No. 76–66–48B,
Revision B, dated July 8, 2009.
(b) After accomplishing paragraph (a) of
this AD, insert into the Sikorsky Rotorcraft
Flight Manual (RFM) the changes to the
‘‘Normal Procedures (Part I, Section II)’’ and
[Docket No. FAA–2011–1115; Directorate
Identifier 2010–SW–011–AD]
VerDate Mar<15>2010
16:20 Oct 25, 2011
Jkt 226001
14 CFR Part 39
RIN 2120–AA64
Airworthiness Directives; Sikorsky
Aircraft Corporation (Sikorsky) Model
S–92A Helicopters
Federal Aviation
Administration, DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
This document proposes
adopting a new airworthiness directive
(AD) for the Sikorsky Model S–92A
helicopters. This proposal would
require revising the Operating
Limitations section of the Sikorsky
Model S–92A Rotorcraft Flight Manual
(RFM). This proposal is prompted by
the manufacturer’s analysis of engine
data that revealed the data was
inaccurate in dealing with available
above specification engine power
margin. The actions specified by this
proposed AD are intended to prevent
the use of inaccurate engine
performance data in calculating
maximum gross weight by revising the
Operating Limitations section of the
RFM.
SUMMARY:
Comments must be received on
or before December 27, 2011.
ADDRESSES: Use one of the following
addresses to submit comments on this
proposed AD:
• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
DATES:
PO 00000
Frm 00010
Fmt 4702
Sfmt 4702
66207
• Fax: 202–493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations,
M–30, West Building Ground Floor,
Room W12–140, 1200 New Jersey
Avenue, SE., Washington, DC 20590.
• Hand Delivery: U.S. Department of
Transportation, Docket Operations,
M–30, West Building Ground Floor,
Room W12–140, 1200 New Jersey
Avenue, SE., Washington, DC 20590,
between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
FOR FURTHER INFORMATION CONTACT: John
Coffey, Aviation Safety Engineer, Boston
Aircraft Certification Office, 12 New
England Executive Park, Burlington, MA
01803, telephone (781) 238–7173, fax
(781) 238–7170.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to submit any written
data, views, or arguments regarding this
proposed AD. Send your comments to
the address listed under the caption
ADDRESSES. Include the docket number
‘‘FAA–2011–1115, Directorate Identifier
2010–SW–011–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://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact with FAA
personnel concerning this proposed
rulemaking. Using the search function
of our docket web site, you can find and
read the comments to any of our
dockets, including the name of the
individual who sent or signed the
comment. You may review the DOT’s
complete Privacy Act Statement in the
Federal Register published on April 11,
2000 (65 FR 19477–78).
Examining the Docket
You may examine the docket that
contains the proposed AD, any
comments, and other information on the
Internet at https://www.regulations.gov
or in person at the Docket Operations
office between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal
holidays. The Docket Operations office
(telephone (800) 647–5527) is located in
Room W12–140 on the ground floor of
the West Building at the street address
stated in the ADDRESSES section.
Comments will be available in the AD
docket shortly after receipt.
E:\FR\FM\26OCP1.SGM
26OCP1
66208
Federal Register / Vol. 76, No. 207 / Wednesday, October 26, 2011 / Proposed Rules
Discussion
This document proposes adopting a
new AD for the Sikorsky Model S–92A
helicopters. This proposal would
require revising the Operating
Limitations section, Part 1, Section 1,
Weight Limits, of the Sikorsky Model S–
92A RFM with the following statement
‘‘Performance credit for above
specification engine power margin is
prohibited.’’ Engine power margin is
determined through power assurance
checks. Previous flight manual revisions
allowed for the use of above
specification engine power margin as
shown in the circled area of Figure 1 of
this AD. The use of above-specification
engine power margin is now being
prohibited. Sikorsky has published
various RFM revisions correcting the
charts in Parts I and IV of the RFM. If
those revisions have previously been
incorporated into the RFM, the RFM
revision specified by this proposed AD
would not be required. The RFM
revisions, all dated April 9, 2008, are as
follows:
Revision with
correct charts
Affected RFM
jlentini on DSK4TPTVN1PROD with PROPOSALS
S92A–RFM–002
S92A–RFM–003
S92A–RFM–004
S92A–RFM–005
S92A–RFM–006
................
................
................
................
................
Revision
Revision
Revision
Revision
Revision
8.
7.
6.
5.
6.
This proposal is prompted by the
manufacturer’s analysis of engine data
that revealed the data was inaccurate in
dealing with available engine power
margin. The actions specified by this
proposed AD are intended to prevent
the use of inaccurate performance data
in calculating maximum gross weight by
revising the Operating Limitations
section of the RFM.
This unsafe condition is likely to exist
or develop on other helicopters of the
same type design. Therefore, the
proposed AD would require inserting a
limitation into the Operating Limitation
section of the RFM prohibiting the use
of power margin percentage credit in
calculating gross weight and inserting
the revisions into the Operating
Limitations, Part 1, Section 1, of
Sikorsky RFM SA S92A–RFM–002,
–003, –004, –005, and –006.
We estimate that this proposed AD
would affect 37 helicopters of U.S.
registry, and the proposed actions
would take about 1 work hour per
helicopter to insert the revisions into
the RFM at an average labor rate of $85
VerDate Mar<15>2010
16:20 Oct 25, 2011
Jkt 226001
per work hour. Parts costs are not
associated with this AD. Based on these
figures, we estimate the total cost
impact of the proposed AD on U.S.
operators would be $3,145.
Regulatory Findings
We have determined that this
proposed AD would not have federalism
implications under Executive Order
13132. Additionally, 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);
3. Will not affect intrastate aviation in
Alaska to the extent that it justifies
making a regulatory distinction; and
4. 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 an economic evaluation
of the estimated costs to comply with
this proposed AD. See the AD docket to
examine the draft economic evaluation.
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.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
PO 00000
Frm 00011
Fmt 4702
Sfmt 4702
The Proposed Amendment
Accordingly, pursuant to the
authority delegated to me by the
Administrator, the Federal Aviation
Administration proposes to amend part
39 of the Federal Aviation Regulations
(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. Section 39.13 is amended by
adding a new airworthiness directive to
read as follows:
Sikorsky Aircraft Corporation: Docket No.
FAA–2011–1115; Directorate Identifier
2010–SW–011–AD.
Applicability: Model S–92A helicopters,
certificated in any category.
Compliance: Within 90 days, unless
accomplished previously.
To prevent the use of inaccurate
performance data in calculating the
maximum gross weight, revise the Operating
Limitations section of the Rotorcraft Flight
Manual (RFM) as follows:
(a) By making pen and ink changes, insert
into the Operating Limitations section, Part 1,
Section 1, Weight Limits, of RFM SA S92A–
RFM–002, –003, –004, –005, and –006 the
following limitation ‘‘Performance credit for
above specification engine power margin is
prohibited.’’
(b) If the RFM already contains the
revisions appropriate for your helicopter as
listed in the following Table 1, all dated
April 9, 2008, with the correct performance
charts, without the performance credit as
depicted in the circled area of Figure 1 of this
AD, the operating limitation required by
paragraph (a) of this AD does not need to be
inserted into the RFM.
TABLE 1
Affected RFM
S92A–RFM–002
S92A–RFM–003
S92A–RFM–004
S92A–RFM–005
S92A–RFM–006
................
................
................
................
................
Revision with
correct charts
Revision
Revision
Revision
Revision
Revision
8.
7.
6.
5.
6.
Note 1: Previous RFM revisions allowed for
the use of above-specification engine power
margin as depicted in the circled area of
Figure 1 of this AD.
E:\FR\FM\26OCP1.SGM
26OCP1
(c) To request a different method of
compliance or a different compliance time
for this AD, follow the procedures in 14 CFR
39.19. Contact the Manager, Boston Aircraft
Certification Office, FAA, Attn: John Coffey
Aviation Safety Engineer, 12 New England
Executive Park, Burlington, MA 01803,
telephone (781) 238–7173, fax (781) 238–
7170, for information about previously
approved alternative methods of compliance.
(d) The Joint Aircraft System/Component
(JASC) Code is 7200: Engine (Turbine/
Turboprop).
Issued in Fort Worth, Texas, on October 7,
2011.
Lance T. Gant,
Acting Manager, Rotorcraft Directorate,
Aircraft Certification Service.
[FR Doc. 2011–27670 Filed 10–25–11; 8:45 am]
BILLING CODE 4910–13–P
VerDate Mar<15>2010
16:20 Oct 25, 2011
Jkt 226001
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2011–1113; Directorate
Identifier 2009–SW–53–AD]
RIN 2120–AA64
Airworthiness Directives; Sikorsky
Aircraft Corporation (Sikorsky) Model
S–92A Helicopters
Federal Aviation
Administration, DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
PO 00000
Frm 00012
Fmt 4702
Sfmt 4702
66209
This document proposes
adopting a new airworthiness directive
(AD) for the Sikorsky Model S–92A
helicopters. This proposal would
require inspecting each tail rotor blade
(blade) for mislocated aluminum wire
mesh in the blade skin. This proposal is
prompted by the discovery that blades
were manufactured with aluminum wire
mesh mislocated, leaving portions of the
graphite torque tube (spar) region
unprotected from a lightning strike. This
condition can exist in both the upper
and lower blade skin airfoils. The
actions specified by this proposed AD
are intended to detect mislocated blade
wire mesh and to prevent spar
delamination, loss of the blade tip cap
during a lightning strike, blade
SUMMARY:
E:\FR\FM\26OCP1.SGM
26OCP1
EP26OC11.066</GPH>
jlentini on DSK4TPTVN1PROD with PROPOSALS
Federal Register / Vol. 76, No. 207 / Wednesday, October 26, 2011 / Proposed Rules
]]>Agencies
[Federal Register Volume 76, Number 207 (Wednesday, October 26, 2011)]
[Proposed Rules]
[Pages 66207-66209]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-27670]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2011-1115; Directorate Identifier 2010-SW-011-AD]
RIN 2120-AA64
Airworthiness Directives; Sikorsky Aircraft Corporation
(Sikorsky) Model S-92A Helicopters
AGENCY: Federal Aviation Administration, DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: This document proposes adopting a new airworthiness directive
(AD) for the Sikorsky Model S-92A helicopters. This proposal would
require revising the Operating Limitations section of the Sikorsky
Model S-92A Rotorcraft Flight Manual (RFM). This proposal is prompted
by the manufacturer's analysis of engine data that revealed the data
was inaccurate in dealing with available above specification engine
power margin. The actions specified by this proposed AD are intended to
prevent the use of inaccurate engine performance data in calculating
maximum gross weight by revising the Operating Limitations section of
the RFM.
DATES: Comments must be received on or before December 27, 2011.
ADDRESSES: Use one of the following addresses to submit comments on
this proposed AD:
Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
Fax: 202-493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue, SE., Washington, DC 20590.
Hand Delivery: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays.
FOR FURTHER INFORMATION CONTACT: John Coffey, Aviation Safety Engineer,
Boston Aircraft Certification Office, 12 New England Executive Park,
Burlington, MA 01803, telephone (781) 238-7173, fax (781) 238-7170.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to submit any written data, views, or arguments
regarding this proposed AD. Send your comments to the address listed
under the caption ADDRESSES. Include the docket number ``FAA-2011-1115,
Directorate Identifier 2010-SW-011-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://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact
with FAA personnel concerning this proposed rulemaking. Using the
search function of our docket web site, you can find and read the
comments to any of our dockets, including the name of the individual
who sent or signed the comment. You may review the DOT's complete
Privacy Act Statement in the Federal Register published on April 11,
2000 (65 FR 19477-78).
Examining the Docket
You may examine the docket that contains the proposed AD, any
comments, and other information on the Internet at https://www.regulations.gov or in person at the Docket Operations office
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The Docket Operations office (telephone (800) 647-5527) is
located in Room W12-140 on the ground floor of the West Building at the
street address stated in the ADDRESSES section. Comments will be
available in the AD docket shortly after receipt.
[[Page 66208]]
Discussion
This document proposes adopting a new AD for the Sikorsky Model S-
92A helicopters. This proposal would require revising the Operating
Limitations section, Part 1, Section 1, Weight Limits, of the Sikorsky
Model S-92A RFM with the following statement ``Performance credit for
above specification engine power margin is prohibited.'' Engine power
margin is determined through power assurance checks. Previous flight
manual revisions allowed for the use of above specification engine
power margin as shown in the circled area of Figure 1 of this AD. The
use of above-specification engine power margin is now being prohibited.
Sikorsky has published various RFM revisions correcting the charts in
Parts I and IV of the RFM. If those revisions have previously been
incorporated into the RFM, the RFM revision specified by this proposed
AD would not be required. The RFM revisions, all dated April 9, 2008,
are as follows:
------------------------------------------------------------------------
Affected RFM Revision with correct charts
------------------------------------------------------------------------
S92A-RFM-002........................... Revision 8.
S92A-RFM-003........................... Revision 7.
S92A-RFM-004........................... Revision 6.
S92A-RFM-005........................... Revision 5.
S92A-RFM-006........................... Revision 6.
------------------------------------------------------------------------
This proposal is prompted by the manufacturer's analysis of engine
data that revealed the data was inaccurate in dealing with available
engine power margin. The actions specified by this proposed AD are
intended to prevent the use of inaccurate performance data in
calculating maximum gross weight by revising the Operating Limitations
section of the RFM.
This unsafe condition is likely to exist or develop on other
helicopters of the same type design. Therefore, the proposed AD would
require inserting a limitation into the Operating Limitation section of
the RFM prohibiting the use of power margin percentage credit in
calculating gross weight and inserting the revisions into the Operating
Limitations, Part 1, Section 1, of Sikorsky RFM SA S92A-RFM-002, -003,
-004, -005, and -006.
We estimate that this proposed AD would affect 37 helicopters of
U.S. registry, and the proposed actions would take about 1 work hour
per helicopter to insert the revisions into the RFM at an average labor
rate of $85 per work hour. Parts costs are not associated with this AD.
Based on these figures, we estimate the total cost impact of the
proposed AD on U.S. operators would be $3,145.
Regulatory Findings
We have determined that this proposed AD would not have federalism
implications under Executive Order 13132. Additionally, 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);
3. Will not affect intrastate aviation in Alaska to the extent that
it justifies making a regulatory distinction; and
4. 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 an economic evaluation of the estimated costs to comply
with this proposed AD. See the AD docket to examine the draft economic
evaluation.
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.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
The Proposed Amendment
Accordingly, pursuant to the authority delegated to me by the
Administrator, the Federal Aviation Administration proposes to amend
part 39 of the Federal Aviation Regulations (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. Section 39.13 is amended by adding a new airworthiness directive
to read as follows:
Sikorsky Aircraft Corporation: Docket No. FAA-2011-1115; Directorate
Identifier 2010-SW-011-AD.
Applicability: Model S-92A helicopters, certificated in any
category.
Compliance: Within 90 days, unless accomplished previously.
To prevent the use of inaccurate performance data in calculating
the maximum gross weight, revise the Operating Limitations section
of the Rotorcraft Flight Manual (RFM) as follows:
(a) By making pen and ink changes, insert into the Operating
Limitations section, Part 1, Section 1, Weight Limits, of RFM SA
S92A-RFM-002, -003, -004, -005, and -006 the following limitation
``Performance credit for above specification engine power margin is
prohibited.''
(b) If the RFM already contains the revisions appropriate for
your helicopter as listed in the following Table 1, all dated April
9, 2008, with the correct performance charts, without the
performance credit as depicted in the circled area of Figure 1 of
this AD, the operating limitation required by paragraph (a) of this
AD does not need to be inserted into the RFM.
Table 1
------------------------------------------------------------------------
Affected RFM Revision with correct charts
------------------------------------------------------------------------
S92A-RFM-002........................... Revision 8.
S92A-RFM-003........................... Revision 7.
S92A-RFM-004........................... Revision 6.
S92A-RFM-005........................... Revision 5.
S92A-RFM-006........................... Revision 6.
------------------------------------------------------------------------
Note 1: Previous RFM revisions allowed for the use of above-
specification engine power margin as depicted in the circled area of
Figure 1 of this AD.
[[Page 66209]]
[GRAPHIC] [TIFF OMITTED] TP26OC11.066
(c) To request a different method of compliance or a different
compliance time for this AD, follow the procedures in 14 CFR 39.19.
Contact the Manager, Boston Aircraft Certification Office, FAA,
Attn: John Coffey Aviation Safety Engineer, 12 New England Executive
Park, Burlington, MA 01803, telephone (781) 238-7173, fax (781) 238-
7170, for information about previously approved alternative methods
of compliance.
(d) The Joint Aircraft System/Component (JASC) Code is 7200:
Engine (Turbine/Turboprop).
Issued in Fort Worth, Texas, on October 7, 2011.
Lance T. Gant,
Acting Manager, Rotorcraft Directorate, Aircraft Certification Service.
[FR Doc. 2011-27670 Filed 10-25-11; 8:45 am]
BILLING CODE 4910-13-P
