80 FR 65614 - Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 80, Issue 207 (October 27, 2015)
Federal Aviation Administration
Federal Register Volume 80, Issue 207 (October 27, 2015)
| Page Range | 65614-65616 | |
| FR Document | 2015-27184 |
[Federal Register Volume 80, Number 207 (Tuesday, October 27, 2015)] [Rules and Regulations] [Pages 65614-65616] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2015-27184] ======================================================================= ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2015-0787; Directorate Identifier 2015-NE-10-AD; Amendment 39-18307; AD 2015-22-03] RIN 2120-AA64 Airworthiness Directives; Pratt & Whitney Division Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: We are adopting a new airworthiness directive (AD) for all Pratt & Whitney Division (PW) PW4164, PW4168, PW4168A, PW4164C, PW4164C/B, PW4164-1D, PW4168-1D, PW4168A-1D, PW4170, PW4164C-1D, PW4164C/B-1D, PW4050, PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4062A, PW4152, PW4156, PW4156A, PW4158, PW4160, PW4460, PW4462, and PW4650 turbofan engines including models with a ``-3'' suffix with a low-pressure turbine (LPT) 4th stage inner air seal (IAS), part number (P/N) 51N038, installed. This AD was prompted by the discovery, during routine overhaul of the LPT, of cracks in the barrel section of the LPT 4th stage IAS. This AD requires removal of the LPT 4th stage IAS, P/N 51N038, according to a prescribed schedule. We are issuing this AD to prevent failure of the LPT 4th stage IAS, which could lead to an uncontained IAS release, damage to the engine, and damage to the airplane. DATES: This AD is effective December 1, 2015. ADDRESSES: For service information identified in this AD, contact Pratt & Whitney Division, 400 Main St., East Hartford, CT 06108; phone: (860) 565-8770; fax: (860) 565-4503. You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call (781) 238-7125. Examining the AD Docket You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015- 0787; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received, and other information. The address for the Docket Office (phone: 800-647- 5527) is Document Management Facility, U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Katheryn Malatek, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7747; fax: 781-238-7199; email: [email protected]. SUPPLEMENTARY INFORMATION: Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to all PW PW4164, PW4168, PW4168A, PW4164C, PW4164C/B, PW4164-1D, PW4168-1D, PW4168A-1D, PW4170, PW4164C-1D, PW4164C/B-1D, PW4050, PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4062A, PW4152, PW4156, PW4156A, PW4158, PW4160, PW4460, PW4462, and PW4650 turbofan engines including models with a ``- 3'' suffix with an LPT 4th stage IAS, P/N 51N038, installed. The NPRM published in the Federal Register on June 1, 2015 (80 FR 30963). The NPRM was prompted by nine occasions of discovering, during routine overhaul of the LPT, cracks in the barrel section of the LPT 4th stage IAS. The NPRM proposed to require removal of the LPT 4th stage IAS, P/N 51N038, according to a prescribed schedule. We are issuing this AD to prevent failure of the LPT 4th stage IAS, which could lead to an uncontained IAS release, damage to the engine, and damage to the airplane. Comments We gave the public the opportunity to participate in developing this AD. The following presents the comments received on the NPRM and the FAA's response to each comment. Support for the NPRM (80 FR 30963, June 1, 2015) The Boeing Company expressed support for the NPRM. Request To Change Definitions United Airlines and Delta Airlines requested that the Definitions paragraph be changed. United Airlines requested we change the definition of LPT overhaul from ``maintenance which involves disassembly of the LPT rotor module'' to ``when the LPT module is disassembled sufficiently to gain access [[Page 65615]] to the LPT 4th stage rotor assembly (disk/blade/seal).'' Delta Airlines requested we change the definition of an LPT overhaul to ``when all disks in the rotor are removed from the engine and the blades are removed.'' We agree that the definition of an LPT overhaul should be clarified. We changed the definition of an LPT overhaul to ``An LPT overhaul is defined as when all disks in the rotor are removed from the engine and the blades are removed.'' Request To Change Applicability Delta Airlines requested changing the applicability to include models with any dash number suffix. We agree with the intent of this request. We changed the Summary, Discussion, and Applicability sections by adding ``. . . including models with a ``-3'' suffix . . .'' following the listed engine models as required. Conclusion We reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting this AD with the changes described previously. We determined that these changes will not increase the economic burden on any operator or increase the scope of this AD. Costs of Compliance We estimate that this AD affects 72 engines installed on airplanes of U.S. registry. We also estimate that 9 of the engines will require replacement parts during shop visit, the pro-rated cost of these parts cost will be $23,805 per engine, and compliance with this AD will require about 49 hours of labor per engine. The average labor rate is $85 per hour. We also estimate that 63 of the engines will require replacement parts during LPT overhaul, the pro-rated replacement parts cost for these parts is $43,545 per engine, and that these 63 engines will require 0 additional hours of labor per engine since the parts are already exposed during LPT overhaul. Based on these figures, we estimate the cost of this AD on U.S. operators to be $2,995,065. 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 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: (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), (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. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA 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 (AD): 2015-22-03 Pratt & Whitney Division: Amendment 39-18307; Docket No. FAA-2015-0787; Directorate Identifier 2015-NE-10-AD. (a) Effective Date This AD is effective December 1, 2015. (b) Affected ADs None. (c) Applicability This AD applies to: (1) All Pratt & Whitney Division PW4164, PW4168, PW4168A, PW4164C, PW4164C/B, PW4164-1D, PW4168-1D, PW4168A-1D, PW4170, PW4164C-1D, and PW4164C/B-1D turbofan engines with a low-pressure turbine (LPT) 4th stage inner air seal (IAS), part number (P/N) 51N038, installed. (2) All PW4050, PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4062A, PW4152, PW4156, PW4156A, PW4158, PW4160, PW4460, PW4462, and PW4650 turbofan engines including models with a ``-3'' suffix with an LPT 4th stage IAS, P/N 51N038, installed. (d) Unsafe Condition This AD was prompted by the discovery, during routine overhaul of the LPT, of cracks in the barrel section of the LPT 4th stage IAS which could, if not corrected, result in uncontained IAS release, damage to the engine, and damage to the aircraft. We are issuing this AD to prevent failure of the LPT 4th stage IAS, which could lead to an uncontained IAS release, damage to the engine, and damage to the airplane. (e) Compliance Comply with this AD within the compliance times specified, unless already done. For the engines listed in paragraph (c)(1) of this AD: (1) At each LPT overhaul after the effective date of this AD, remove from service the LPT 4th stage IAS, P/N 51N038. (2) At each engine shop visit after the effective date of this AD, remove from service the LPT 4th stage IAS, P/N 51N038, if it has more than 10,900 cycles since new. (f) Installation Prohibition (1) Do not install any LPT 4th stage IAS, P/N 51N038, with more than 0 flight cycles on any engine listed in paragraph (c)(1) of this AD. (2) Do not install on any engine listed in paragraphs (c)(2) of this AD, any LPT 4th stage IAS, P/N 51N038, which was previously installed on any engine listed in paragraph (c)(1) of this AD. (g) Definitions For the purposes of this AD: (1) An LPT overhaul is defined as when all disks in the rotor are removed from the engine and the blades are removed. (2) An ``engine shop visit'' is the induction of an engine into the shop for maintenance involving the separation of pairs of major mating engine flanges (lettered flanges). The separation of engine flanges solely for the purpose of transportation without subsequent engine maintenance does not constitute an engine shop visit. (h) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, FAA, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request. You may email your request to: [email protected]. [[Page 65616]] (i) Related Information For more information about this AD, contact Katheryn Malatek, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7747; fax: 781-238-7199; email: [email protected]. (j) Material Incorporated by Reference None. Issued in Burlington, Massachusetts, on October 21, 2015. Colleen M. D'Alessandro, Directorate Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2015-27184 Filed 10-26-15; 8:45 am] BILLING CODE 4910-13-P
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Subpart G also issued under 12 U.S.C. 2810 DEPARTMENT OF TRANSPORTATION evaluation, any comments received, and
et seq., 2901 et seq.; 15 U.S.C. 1691; 42 U.S.C. other information. The address for the
1981, 1982, 3601–3619. Federal Aviation Administration Docket Office (phone: 800–647–5527) is
Subpart H also issued under 12 U.S.C. Document Management Facility, U.S.
1464; 1831y. 14 CFR Part 39 Department of Transportation, Docket
Subpart I also issued under 12 U.S.C. Operations, M–30, West Building
[Docket No. FAA–2015–0787; Directorate
1831x. Ground Floor, Room W12–140, 1200
Identifier 2015–NE–10–AD; Amendment 39–
Subpart J also issued under 12 U.S.C. 18307; AD 2015–22–03] New Jersey Avenue SE., Washington,
1831p–1. DC 20590.
Subpart M also issued under 12 U.S.C. RIN 2120–AA64
FOR FURTHER INFORMATION CONTACT:
1818. Katheryn Malatek, Aerospace Engineer,
Subpart N also issued under 12 U.S.C. Airworthiness Directives; Pratt &
Whitney Division Turbofan Engines Engine Certification Office, FAA, Engine
1821. & Propeller Directorate, 12 New England
Subpart O also issued under 12 U.S.C. AGENCY: Federal Aviation Executive Park, Burlington, MA 01803;
1828. Administration (FAA), DOT. phone: 781–238–7747; fax: 781–238–
Subpart P also issued under 12 U.S.C. 7199; email: katheryn.malatek@faa.gov.
ACTION: Final rule.
1470; 1831e; 1831n; 1831p–1; 3339.
SUPPLEMENTARY INFORMATION:
Subpart Q also issued under 12 U.S.C. SUMMARY: We are adopting a new
1462; 1462a; 1463; 1464. airworthiness directive (AD) for all Pratt Discussion
Subpart R also issued under 12 U.S.C. & Whitney Division (PW) PW4164, We issued a notice of proposed
1463; 1464; 1831m; 1831n; 1831p–1. PW4168, PW4168A, PW4164C, rulemaking (NPRM) to amend 14 CFR
Subpart S also issued under 12 U.S.C. PW4164C/B, PW4164–1D, PW4168–1D, part 39 by adding an AD that would
1462; 1462a; 1463; 1464; 1468a; 1817; 1820; PW4168A–1D, PW4170, PW4164C–1D, apply to all PW PW4164, PW4168,
1828; 1831e; 1831o; 1831p–1; 1881–1884; PW4164C/B–1D, PW4050, PW4052, PW4168A, PW4164C, PW4164C/B,
3207; 3339; 15 U.S.C. 78b; 78 l; 78m; 78n; PW4056, PW4060, PW4060A, PW4164–1D, PW4168–1D, PW4168A–
78p; 78q; 78w; 31 U.S.C. 5318; 42 U.S.C. PW4060C, PW4062, PW4062A, 1D, PW4170, PW4164C–1D, PW4164C/
4106.
PW4152, PW4156, PW4156A, PW4158, B–1D, PW4050, PW4052, PW4056,
Subpart T also issued under 12 U.S.C.
PW4160, PW4460, PW4462, and PW4060, PW4060A, PW4060C,
1462a; 1463; 1464; 15 U.S.C. 78c; 78 l; 78m;
PW4650 turbofan engines including PW4062, PW4062A, PW4152, PW4156,
78n; 78w.
models with a ‘‘–3’’ suffix with a low- PW4156A, PW4158, PW4160, PW4460,
Subpart U also issued under 12 U.S.C.
pressure turbine (LPT) 4th stage inner PW4462, and PW4650 turbofan engines
1462a; 1463; 1464; 15 U.S.C. 78c; 78 l; 78m;
air seal (IAS), part number (P/N) including models with a ‘‘–3’’ suffix
78n; 78p; 78w; 78d–1; 7241; 7242; 7243;
51N038, installed. This AD was with an LPT 4th stage IAS, P/N 51N038,
7244; 7261; 7264; 7265.
Subpart V also issued under 12 U.S.C.
prompted by the discovery, during installed. The NPRM published in the
3201–3208.
routine overhaul of the LPT, of cracks in Federal Register on June 1, 2015 (80 FR
Subpart W also issued under 12 U.S.C. the barrel section of the LPT 4th stage 30963). The NPRM was prompted by
1462a; 1463; 1464; 15 U.S.C. 78c; 78 l; 78m; IAS. This AD requires removal of the nine occasions of discovering, during
78n; 78p; 78w. LPT 4th stage IAS, P/N 51N038, routine overhaul of the LPT, cracks in
Subpart X also issued under 12 U.S.C. according to a prescribed schedule. We the barrel section of the LPT 4th stage
1462; 1462a; 1463; 1464; 1828; 3331 et seq. are issuing this AD to prevent failure of IAS. The NPRM proposed to require
Subpart Y also issued under 12 U.S.C. the LPT 4th stage IAS, which could lead removal of the LPT 4th stage IAS, P/N
1831o. to an uncontained IAS release, damage 51N038, according to a prescribed
Subpart Z also issued under 12 U.S.C. to the engine, and damage to the schedule. We are issuing this AD to
1462; 1462a; 1463; 1464; 1828 (note). airplane. prevent failure of the LPT 4th stage IAS,
DATES: This AD is effective December 1, which could lead to an uncontained IAS
Subpart L—[Removed and Reserved] 2015. release, damage to the engine, and
damage to the airplane.
ADDRESSES: For service information
■ 2. Remove and reserve subpart L, identified in this AD, contact Pratt & Comments
consisting of §§ 390.220 through Whitney Division, 400 Main St., East We gave the public the opportunity to
390.222. Hartford, CT 06108; phone: (860) 565– participate in developing this AD. The
Dated at Washington, DC, this 22nd day of 8770; fax: (860) 565–4503. You may following presents the comments
October, 2015. view this service information at the received on the NPRM and the FAA’s
By order of the Board of Directors. FAA, Engine & Propeller Directorate, 12 response to each comment.
New England Executive Park,
Federal Deposit Insurance Corporation. Support for the NPRM (80 FR 30963,
Burlington, MA. For information on the
Robert E. Feldman, availability of this material at the FAA, June 1, 2015)
Executive Secretary. call (781) 238–7125. The Boeing Company expressed
[FR Doc. 2015–27292 Filed 10–26–15; 8:45 am]
Examining the AD Docket support for the NPRM.
BILLING CODE 6714–01–P
You may examine the AD docket on Request To Change Definitions
the Internet at http:// United Airlines and Delta Airlines
www.regulations.gov by searching for requested that the Definitions paragraph
tkelley on DSK3SPTVN1PROD with RULES
and locating Docket No. FAA–2015– be changed. United Airlines requested
0787; or in person at the Docket we change the definition of LPT
Management Facility between 9 a.m. overhaul from ‘‘maintenance which
and 5 p.m., Monday through Friday, involves disassembly of the LPT rotor
except Federal holidays. The AD docket module’’ to ‘‘when the LPT module is
contains this AD, the regulatory disassembled sufficiently to gain access
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![Federal Register / Vol. 80, No. 207 / Tuesday, October 27, 2015 / Rules and Regulations 65615
to the LPT 4th stage rotor assembly Part A, Subpart III, Section 44701: (b) Affected ADs
(disk/blade/seal).’’ Delta Airlines ‘‘General requirements.’’ Under that None.
requested we change the definition of an section, Congress charges the FAA with
(c) Applicability
LPT overhaul to ‘‘when all disks in the promoting safe flight of civil aircraft in
rotor are removed from the engine and air commerce by prescribing regulations This AD applies to:
(1) All Pratt & Whitney Division PW4164,
the blades are removed.’’ for practices, methods, and procedures PW4168, PW4168A, PW4164C, PW4164C/B,
We agree that the definition of an LPT the Administrator finds necessary for PW4164–1D, PW4168–1D, PW4168A–1D,
overhaul should be clarified. We safety in air commerce. This regulation PW4170, PW4164C–1D, and PW4164C/B–1D
changed the definition of an LPT is within the scope of that authority turbofan engines with a low-pressure turbine
overhaul to ‘‘An LPT overhaul is because it addresses an unsafe condition (LPT) 4th stage inner air seal (IAS), part
defined as when all disks in the rotor that is likely to exist or develop on number (P/N) 51N038, installed.
are removed from the engine and the products identified in this rulemaking (2) All PW4050, PW4052, PW4056,
blades are removed.’’ PW4060, PW4060A, PW4060C, PW4062,
action.
PW4062A, PW4152, PW4156, PW4156A,
Request To Change Applicability Regulatory Findings PW4158, PW4160, PW4460, PW4462, and
PW4650 turbofan engines including models
Delta Airlines requested changing the This AD will not have federalism with a ‘‘–3’’ suffix with an LPT 4th stage IAS,
applicability to include models with implications under Executive Order P/N 51N038, installed.
any dash number suffix. 13132. This AD will not have a
We agree with the intent of this (d) Unsafe Condition
substantial direct effect on the States, on
request. We changed the Summary, the relationship between the national This AD was prompted by the discovery,
Discussion, and Applicability sections during routine overhaul of the LPT, of cracks
government and the States, or on the
by adding ‘‘. . . including models with in the barrel section of the LPT 4th stage IAS
distribution of power and which could, if not corrected, result in
a ‘‘–3’’ suffix . . .’’ following the listed responsibilities among the various uncontained IAS release, damage to the
engine models as required. levels of government. engine, and damage to the aircraft. We are
Conclusion For the reasons discussed above, I issuing this AD to prevent failure of the LPT
certify that this AD: 4th stage IAS, which could lead to an
We reviewed the relevant data, (1) Is not a ‘‘significant regulatory uncontained IAS release, damage to the
considered the comments received, and action’’ under Executive Order 12866, engine, and damage to the airplane.
determined that air safety and the (2) Is not a ‘‘significant rule’’ under (e) Compliance
public interest require adopting this AD DOT Regulatory Policies and Procedures
with the changes described previously. Comply with this AD within the
(44 FR 11034, February 26, 1979), compliance times specified, unless already
We determined that these changes will (3) Will not affect intrastate aviation done. For the engines listed in paragraph
not increase the economic burden on in Alaska to the extent that it justifies (c)(1) of this AD:
any operator or increase the scope of making a regulatory distinction, and (1) At each LPT overhaul after the effective
this AD. (4) Will not have a significant date of this AD, remove from service the LPT
economic impact, positive or negative, 4th stage IAS, P/N 51N038.
Costs of Compliance (2) At each engine shop visit after the
on a substantial number of small entities effective date of this AD, remove from service
We estimate that this AD affects 72
under the criteria of the Regulatory the LPT 4th stage IAS, P/N 51N038, if it has
engines installed on airplanes of U.S.
Flexibility Act. more than 10,900 cycles since new.
registry. We also estimate that 9 of the
engines will require replacement parts List of Subjects in 14 CFR Part 39 (f) Installation Prohibition
during shop visit, the pro-rated cost of Air transportation, Aircraft, Aviation (1) Do not install any LPT 4th stage IAS,
these parts cost will be $23,805 per safety, Incorporation by reference, P/N 51N038, with more than 0 flight cycles
engine, and compliance with this AD Safety. on any engine listed in paragraph (c)(1) of
will require about 49 hours of labor per this AD.
engine. The average labor rate is $85 per Adoption of the Amendment (2) Do not install on any engine listed in
hour. We also estimate that 63 of the paragraphs (c)(2) of this AD, any LPT 4th
Accordingly, under the authority stage IAS, P/N 51N038, which was
engines will require replacement parts delegated to me by the Administrator, previously installed on any engine listed in
during LPT overhaul, the pro-rated the FAA amends 14 CFR part 39 as paragraph (c)(1) of this AD.
replacement parts cost for these parts is follows:
$43,545 per engine, and that these 63 (g) Definitions
engines will require 0 additional hours PART 39—AIRWORTHINESS For the purposes of this AD:
of labor per engine since the parts are DIRECTIVES (1) An LPT overhaul is defined as when all
already exposed during LPT overhaul. disks in the rotor are removed from the
Based on these figures, we estimate the ■ 1. The authority citation for part 39 engine and the blades are removed.
continues to read as follows: (2) An ‘‘engine shop visit’’ is the induction
cost of this AD on U.S. operators to be of an engine into the shop for maintenance
$2,995,065. Authority: 49 U.S.C. 106(g), 40113, 44701. involving the separation of pairs of major
Authority for This Rulemaking mating engine flanges (lettered flanges). The
§ 39.13 [Amended] separation of engine flanges solely for the
Title 49 of the United States Code ■ 2. The FAA amends § 39.13 by adding purpose of transportation without subsequent
specifies the FAA’s authority to issue the following new airworthiness engine maintenance does not constitute an
rules on aviation safety. Subtitle I, engine shop visit.
directive (AD):
section 106, describes the authority of
tkelley on DSK3SPTVN1PROD with RULES
2015–22–03 Pratt & Whitney Division: (h) Alternative Methods of Compliance
the FAA Administrator. Subtitle VII: (AMOCs)
Amendment 39–18307; Docket No.
Aviation Programs, describes in more The Manager, Engine Certification Office,
FAA–2015–0787; Directorate Identifier
detail the scope of the Agency’s 2015–NE–10–AD. FAA, may approve AMOCs for this AD. Use
authority. the procedures found in 14 CFR 39.19 to
We are issuing this rulemaking under (a) Effective Date make your request. You may email your
the authority described in Subtitle VII, This AD is effective December 1, 2015. request to: ANE-AD-AMOC@faa.gov.
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(i) Related Information ADDRESSES: For service information area. We are issuing this AD to detect
For more information about this AD, identified in this AD, contact Boeing and correct fatigue cracks that could
contact Katheryn Malatek, Aerospace Commercial Airplanes, Attention: Data extend and fully sever the frame, which
Engineer, Engine Certification Office, FAA, & Services Management, P.O. Box 3707, could result in development of skin
Engine & Propeller Directorate, 12 New MC 2H–65, Seattle, WA 98124–2207; cracks that could lead to rapid
England Executive Park, Burlington, MA telephone 206–544–5000, extension 1; depressurization of the airplane.
01803; phone: 781–238–7747; fax: 781–238– fax 206–766–5680; Internet https://
7199; email: katheryn.malatek@faa.gov. Comments
www.myboeingfleet.com. You may view
(j) Material Incorporated by Reference this referenced service information at We gave the public the opportunity to
None. the FAA, Transport Airplane participate in developing this AD. The
Directorate, 1601 Lind Avenue SW., following presents the comments
Issued in Burlington, Massachusetts, on
Renton, WA. For information on the received on the NPRM (80 FR 16606,
October 21, 2015.
availability of this material at the FAA, March 30, 2015) and the FAA’s response
Colleen M. D’Alessandro,
call 425–227–1221. It is also available to each comment.
Directorate Manager, Engine & Propeller
Directorate, Aircraft Certification Service.
on the Internet at http:// Support for the NPRM (80 FR 16606,
www.regulations.govby searching for March 30, 2015)
[FR Doc. 2015–27184 Filed 10–26–15; 8:45 am]
and locating Docket No. FAA–2015–
BILLING CODE 4910–13–P
0498. Boeing stated that it concurred with
the contents of the NPRM (80 FR 16606,
Examining the AD Docket March 30, 2015).
DEPARTMENT OF TRANSPORTATION
You may examine the AD docket on Statement Regarding the NPRM (80 FR
Federal Aviation Administration the Internet at http:// 16606, March 30, 2015)
www.regulations.gov by searching for
and locating Docket No. FAA–2015– United Airlines stated that it has
14 CFR Part 39 reviewed the NPRM (80 FR 16606,
0498; or in person at the Docket
Management Facility between 9 a.m. March 30, 2015), and has no comment
[Docket No. FAA–2015–0498; Directorate
Identifier 2014–NM–152–AD; Amendment and 5 p.m., Monday through Friday, to submit.
39–18305; AD 2015–22–01] except Federal holidays. The AD docket Request To Clarify Inspection
contains this AD, the regulatory Requirements
RIN 2120–AA64 evaluation, any comments received, and
UPS requested that we add an
other information. The address for the
Airworthiness Directives; The Boeing additional statement to paragraph (i) of
Docket Office (phone: 800–647–5527) is
Company Airplanes the proposed AD (‘‘Exception to the
Document Management Facility, U.S.
Service Information,’’) to clarify that the
AGENCY: Federal Aviation Department of Transportation, Docket
removal of fasteners is not required for
Administration (FAA), DOT. Operations, M–30, West Building
performing the surface high-frequency
ACTION: Final rule.
Ground Floor, Room W12–140, 1200
eddy current (HFEC) inspections
New Jersey Avenue SE., Washington,
specified by paragraph (g) of the
SUMMARY: We are superseding DC 20590.
proposed AD (80 FR 16606, March 30,
Airworthiness Directive (AD) 2007–16– FOR FURTHER INFORMATION CONTACT: Bill 2015). UPS stated that by adding the
08, which applied to all The Boeing Ashforth, Aerospace Engineer, Airframe clarification that the removal of
Company Model 747–100, 747–100B, Branch, ANM–120S, FAA, Seattle fasteners is not required, significant
747–100B SUD, 747–200B, 747–200C, Aircraft Certification Office (ACO), 1601 time and materials would be saved by
747–300, 747–400, 747–400D, and Lind Avenue SW., Renton, WA 98057– operators when accomplishing this
747SR series airplanes. AD 2007–16–08 3356; phone: 425–917–6432; fax: 425– inspection and prevent unnecessary
required repetitive inspections for 917–6590; email: bill.ashforth@faa.gov. alternative method of compliance
cracking of the station 800 frame SUPPLEMENTARY INFORMATION: (AMOC) requests. UPS explained that
assembly, and repair if necessary. This Boeing agreed in a response to a service
new AD continues to require repetitive Discussion
request that fastener removal is not
inspections for cracking of the station We issued a notice of proposed required for performing surface HFEC
800 frame assembly, and repair if rulemaking (NPRM) to amend 14 CFR inspections.
necessary, and expands the inspection part 39 to supersede AD 2007–16–08, We agree because the clarification
area. This AD was prompted by reports Amendment 39–15147 (72 FR 44728, will reduce costs while ensuring the
of cracks found at the forward and aft August 9, 2007). AD 2007–16–08 same level of safety. We have added the
inner chord strap and angles on the applied to all The Boeing Company following sentence to paragraph (g) of
station 800 frame on the left-side and Model 747–100, 747–100B, 747–100B this AD: ‘‘It is not necessary to remove
right-side main entry doors. We are SUD, 747–200B, 747–200C, 747–300, fasteners while performing the surface
issuing this AD to detect and correct 747–400, 747–400D, and 747SR series HFEC inspections.’’
fatigue cracks that could extend and airplanes. The NPRM published in the
fully sever the frame, which could result Federal Register on March 30, 2015 (80 Conclusion
in development of skin cracks that FR 16606). The NPRM was prompted by We reviewed the relevant data,
could lead to rapid depressurization of reports of cracks found at the forward considered the comments received, and
the airplane. and aft inner chord strap and angles on determined that air safety and the
tkelley on DSK3SPTVN1PROD with RULES
DATES: This AD is effective December 1, the station 800 frame on the left-side public interest require adopting this AD
2015. and right-side main entry doors. The with the change described previously
The Director of the Federal Register NPRM proposed to continue to require and minor editorial changes. We have
approved the incorporation by reference repetitive inspections for cracking of the determined that these minor changes:
of a certain publication listed in this AD station 800 frame assembly, and repair • Are consistent with the intent that
as of December 1, 2015. if necessary, and expand the inspection was proposed in the NPRM (80 FR
VerDate Sep<11>2014 16:49 Oct 26, 2015 Jkt 238001 PO 00000 Frm 00010 Fmt 4700 Sfmt 4700 E:\FR\FM\27OCR1.SGM 27OCR1](https://thefederalregister.org/doc/80_FR_65821/page/3.svg)
Document Created: 2015-12-14 15:35:58
Document Modified: 2015-12-14 15:35:58
| Category | Regulatory Information | |
| Collection | Federal Register | |
| sudoc Class | AE 2.7: GS 4.107: AE 2.106: | |
| Publisher | Office of the Federal Register, National Archives and Records Administration | |
| Section | Rules and Regulations | |
| Action | Final rule. | |
| Dates | This AD is effective December 1, 2015. | |
| Contact | Katheryn Malatek, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7747; fax: 781-238-7199; email: [email protected] | |
| FR Citation | 80 FR 65614 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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