80 FR 71747 - Airworthiness Directives; General Electric Company Turbofan Engines
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 80, Issue 221 (November 17, 2015)
Federal Aviation Administration
Federal Register Volume 80, Issue 221 (November 17, 2015)
| Page Range | 71747-71749 | |
| FR Document | 2015-28898 |
[Federal Register Volume 80, Number 221 (Tuesday, November 17, 2015)] [Proposed Rules] [Pages 71747-71749] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2015-28898] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2015-4023; Directorate Identifier 2015-NE-29-AD] RIN 2120-AA64 Airworthiness Directives; General Electric Company Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to adopt a new airworthiness directive (AD) for all General Electric Company (GE) CF6-80E1 turbofan engines with rotating compressor discharge pressure (CDP) seal, part number (P/N) 1669M73P02, installed. This proposed AD was prompted by reports from the manufacturer of cracks in the teeth of two rotating CDP seals found during engine shop visits. This proposed AD would require stripping of the coating, inspecting, and recoating the teeth of the affected rotating CDP seals. We are proposing this AD to prevent cracking of the CDP seal teeth, which can lead to uncontained part release, damage to the engine, and damage to the airplane. DATES: We must receive comments on this proposed AD by January 19, 2016. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods:Federal eRulemaking Portal: Go to http://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: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this proposed AD, contact General Electric Company, GE Aviation, Room [[Page 71748]] 285, 1 Neumann Way, Cincinnati, OH 45215; phone: 513-552-3272; email: aviation.fleetsupport@ge.com. 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- 4023; 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 proposed AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (phone: 800-647-5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Herman Mak, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7147; fax: 781-238-7199; email: herman.mak@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ``Docket No. FAA-2015-4023; Directorate Identifier 2015-NE-29-AD'' at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD because of those comments. We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion We received reports from GE of cracks in the teeth on two rotating CDP seals found during engine shop visits. We learned that the current borazon-nickel seal tooth coating oxidizes during engine operation, which could lead to reduced cutting action, overheating of the seal teeth, and premature cracking of the seal teeth. This condition, if not corrected, could result in cracking of the CDP seal teeth, uncontained part release, damage to the engine, and damage to the airplane. Relevant Service Information Under 1 CFR Part 51 We reviewed GE Service Bulletin (SB) No. CF6-80E1 S/B 72-0529, Revision 1, dated August 21, 2015. The SB describes procedures for stripping, inspecting, and replacing the seal tooth coating on the affected rotating CDP seals. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section of this document. Other Related Service Information We reviewed GE CF6-80E1 (GEK99376) Engine Manual, Revision 42, dated March 15, 2014. The engine manual describes acceptable repair procedures for the seal teeth. FAA's Determination We are proposing this AD because we evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop in other products of the same type design. Proposed AD Requirements This proposed AD would require stripping, inspecting, and recoating the teeth on the affected CDP seals. Costs of Compliance We estimate that this proposed AD will affect 6 engines installed on airplanes of U.S. registry. We also estimate that it will take about 7 hours per engine to comply with this proposed AD. The average labor rate is $85 per hour. Parts would cost about $7,835 per engine. Based on these figures, we estimate the total cost of this proposed AD to U.S. operators to be $50,657. 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 determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify this 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. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows: PART 39--AIRWORTHINESS DIRECTIVES 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): General Electric Company: Docket No. FAA-2015-4023; Directorate Identifier 2015-NE-29-AD. (a) Comments Due Date We must receive comments by January 19, 2016. (b) Affected ADs None. [[Page 71749]] (c) Applicability This AD applies to all General Electric Company (GE) CF6-80E1 turbofan engines with rotating compressor discharge pressure (CDP) seals, part number (P/N) 1669M73P02, installed. (d) Unsafe Condition This AD was prompted by reports from the manufacturer of cracks in the teeth of two rotating CDP seals found during engine shop visits. We are issuing this AD to prevent cracking of the CDP seal teeth, which can lead to uncontained part release, damage to the engine, and damage to the airplane. (e) Compliance (1) Comply with this AD within the compliance times specified, unless already done. (2) After the effective date of this AD, strip coating, inspect, and recoat the teeth of the rotating CDP seal, P/N 1669M73P02, in accordance with paragraph 3.C.(2) of GE Service Bulletin (SB) No. CF6-80E1 S/B 72-0529, Revision 1, dated August 21, 2015, as follows: (i) For engines that have had stationary CDP seal, P/N 1347M28G02, repaired or replaced, strip coating, inspect, and recoat the rotating CDP seal at the next engine shop visit. (ii) For engines that have not had stationary CDP seal, P/N 1347M28G02, repaired or replaced, strip coating, inspect, and recoat the rotating CDP seal at the next part exposure. (f) Definitions (1) For the purpose of this AD, part exposure is defined as removal of the compressor rear frame from the high-pressure compressor module. (2) For the purpose of this AD, an engine shop visit is defined as the induction of an engine into the shop for maintenance involving the separation of pairs of major mating engine flanges, except that the separation of engine flanges solely for the purposes of transportation without subsequent engine maintenance does not constitute an engine shop visit. (g) Credit for Previous Action If you stripped, inspected, and recoated the CDP seal, P/N 1669M73P02, using the procedures in ESM 72-31-10, REPAIR 002 of the GE CF6-80E1 (GEK99376) Engine Manual, Revision 42, dated March 15, 2014, or earlier versions, then you met the requirements of this AD. (h) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, FAA, may approve AMOCs to this AD. Use the procedures found in 14 CFR 39.19 to make your request. You may email your request to: ANE-AD-AMOC@faa.gov. (i) Related Information (1) For more information about this AD, contact Herman Mak, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7147; fax: 781-238-7199; email: herman.mak@faa.gov. (2) GE SB No. CF6-80E1 S/B 72-0529, Revision 1, dated August 21, 2015 can be obtained from GE using the contact information in paragraph (i)(3) of this proposed AD. (3) For service information identified in this proposed AD, contact General Electric Company, GE Aviation, Room 285, 1 Neumann Way, Cincinnati, OH 45215; phone: 513-552-3272; email: aviation.fleetsupport@ge.com. (4) 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. Issued in Burlington, Massachusetts, on November 4, 2015. Carlos A. Pestana, Acting Directorate Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2015-28898 Filed 11-16-15; 8:45 am] BILLING CODE 4910-13-P
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(3) Boeing Alert Service Bulletin B787– SB250041–00, Issue 001, dated October 18, information on the availability of this
81205–SB250040–00, Issue 001, dated 2013. material at the FAA, call 425–227–1221.
October 14, 2013. (5) For airplanes having V/Ns ZA285
Issued in Renton, Washington, on
(4) Boeing Alert Service Bulletin B787– through ZA290 inclusive: Use Boeing Alert
November 4, 2015.
81205–SB250041–00, Issue 001, dated Service Bulletin B787–81205–SB250042–00,
October 18, 2013. Issue 001, dated October 28, 2013. Dionne Palermo,
(5) Boeing Alert Service Bulletin B787– (6) For airplanes having V/Ns ZA270 Acting Manager, Transport Airplane
81205–SB250042–00, Issue 001, dated through ZA271 inclusive: Use Boeing Alert Directorate, Aircraft Certification Service.
October 28, 2013. Service Bulletin B787–81205–SB250043–00, [FR Doc. 2015–28882 Filed 11–16–15; 8:45 am]
(6) Boeing Alert Service Bulletin B787– Issue 001, dated November 4, 2013.
BILLING CODE 4910–13–P
81205–SB250043–00, Issue 001, dated (7) For airplanes having V/Ns ZA261
November 4, 2013. through ZA264 inclusive: Use Boeing Alert
(7) Boeing Alert Service Bulletin B787– Service Bulletin B787–81205–SB250044–00,
Issue 001, dated November 8, 2013. DEPARTMENT OF TRANSPORTATION
81205–SB250044–00, Issue 001, dated
November 8, 2013. (8) For airplanes having V/Ns ZA536
through ZA538 inclusive: Use Boeing Alert Federal Aviation Administration
(8) Boeing Alert Service Bulletin B787–
Service Bulletin B787–81205–SB250045–00,
81205–SB250045–00, Issue 001, dated
November 15, 2013.
Issue 001, dated November 15, 2013. 14 CFR Part 39
(h) Exceptions to Service Information [Docket No. FAA–2015–4023; Directorate
(d) Subject
Specifications Identifier 2015–NE–29–AD]
Air Transport Association (ATA) of
Where the service information identified in RIN 2120–AA64
America Code 25, Equipment/Furnishings.
paragraphs (g)(1) through (g)(8) of this AD
(e) Unsafe Condition specifies a compliance time ‘‘after the Airworthiness Directives; General
original issue date of this service bulletin,’’
This AD was prompted by a report that Electric Company Turbofan Engines
this AD requires compliance within the
certain center and outboard stowage bin
specified compliance time after the effective AGENCY: Federal Aviation
modules were incorrectly installed. We are
date of this AD. Administration (FAA), DOT.
issuing this AD to detect and correct
incorrectly installed center and outboard (i) Alternative Methods of Compliance ACTION: Notice of proposed rulemaking
stowage bin modules that might not remain (AMOCs) (NPRM).
intact during an emergency landing, resulting (1) The Manager, Seattle Aircraft
in injuries to occupants and interference with Certification Office (ACO), FAA, has the SUMMARY: We propose to adopt a new
airplane evacuation. authority to approve AMOCs for this AD, if airworthiness directive (AD) for all
(f) Compliance requested using the procedures found in 14 General Electric Company (GE) CF6–
CFR 39.19. In accordance with 14 CFR 39.19, 80E1 turbofan engines with rotating
Comply with this AD within the send your request to your principal inspector
compliance times specified, unless already compressor discharge pressure (CDP)
or local Flight Standards District Office, as seal, part number (P/N) 1669M73P02,
done. appropriate. If sending information directly
to the manager of the ACO, send it to the installed. This proposed AD was
(g) Inspection and Corrective Action
attention of the person identified in prompted by reports from the
Except as specified in paragraph (h) of this manufacturer of cracks in the teeth of
paragraph (j)(1) of this AD. Information may
AD: At the applicable time specified in two rotating CDP seals found during
be emailed to: 9-ANM-Seattle-ACO-AMOC-
paragraph 5., ‘‘Compliance,’’ of the
applicable service information specified in
Requests@faa.gov. engine shop visits. This proposed AD
(2) Before using any approved AMOC, would require stripping of the coating,
paragraphs (g)(1) through (g)(8) of this AD: notify your appropriate principal inspector,
Do a general visual inspection of the inspecting, and recoating the teeth of
or lacking a principal inspector, the manager the affected rotating CDP seals. We are
installations of the center and outboard of the local flight standards district office/
stowage bin modules to determine if any part certificate holding district office. proposing this AD to prevent cracking of
is missing, if any part is installed at an (3) An AMOC that provides an acceptable the CDP seal teeth, which can lead to
incorrect location, or if any quick release pin level of safety may be used for any repair, uncontained part release, damage to the
is not fully engaged; and do all applicable modification, or alteration required by this engine, and damage to the airplane.
corrective actions; in accordance with the AD if it is approved by the Boeing
Accomplishment Instructions of the DATES: We must receive comments on
Commercial Airplanes Organization this proposed AD by January 19, 2016.
applicable service information identified in Designation Authorization (ODA) that has
paragraphs (g)(1) through (g)(8) of this AD. been authorized by the Manager, Seattle ADDRESSES: You may send comments,
Do all applicable corrective actions before ACO, to make those findings. To be using the procedures found in 14 CFR
further flight. approved, the repair method, modification 11.43 and 11.45, by any of the following
(1) For airplanes having variable numbers deviation, or alteration deviation must meet methods:
(V/Ns) ZA177 through ZA183 inclusive: Use the certification basis of the airplane and the • Federal eRulemaking Portal: Go to
Boeing Alert Service Bulletin B787–81205– approval must specifically refer to this AD.
SB250036–00, Issue 001, dated September
http://www.regulations.gov. Follow the
10, 2013. (j) Related Information instructions for submitting comments.
(2) For airplanes having V/Ns ZA100 (1) For more information about this AD, • Fax: 202–493–2251.
through ZA105 inclusive, V/Ns ZA116 contact Stanley Chen, Aerospace Engineer, • Mail: U.S. Department of
through ZA119 inclusive, V/N ZA135, and V/ Cabin Safety and Environmental Systems Transportation, Docket Operations, M–
NsZA506 through ZA511 inclusive: Use Branch, ANM–150S, FAA, Seattle ACO, 1601 30, West Building Ground Floor, Room
Boeing Alert Service Bulletin B787–81205– Lind Avenue SW., Renton, WA 98057–3356; W12–140, 1200 New Jersey Avenue SE.,
wgreen on DSK2VPTVN1PROD with PROPOSALS
SB250039–00, Issue 001, dated October 8, phone: 425–917–6585; fax: 425–917–6590; Washington, DC 20590.
2013. email: stanley.chen@faa.gov. • Hand Delivery: Deliver to Mail
(3) For airplanes having V/Ns ZA460 (2) For service information identified in address above between 9 a.m. and 5
through ZA464 inclusive: Use Boeing Alert this AD, contact Boeing Commercial
Service Bulletin B787–81205–SB250040–00, Airplanes, Attention: Data & Services p.m., Monday through Friday, except
Issue 001, dated October 14, 2013. Management, P.O. Box 3707, MC 2H–65, Federal holidays.
(4) For airplanes having V/Ns ZA233 and Seattle, WA 98124–2207; telephone 206– For service information identified in
V/Ns ZA236 through ZA240 inclusive: Use 544–5000, extension 1; fax 206–766–5680; this proposed AD, contact General
Boeing Alert Service Bulletin B787–81205– Internet https://www.myboeingfleet.com. For Electric Company, GE Aviation, Room
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285, 1 Neumann Way, Cincinnati, OH the seal teeth. This condition, if not for practices, methods, and procedures
45215; phone: 513–552–3272; email: corrected, could result in cracking of the the Administrator finds necessary for
aviation.fleetsupport@ge.com. You may CDP seal teeth, uncontained part safety in air commerce. This regulation
view this service information at the release, damage to the engine, and is within the scope of that authority
FAA, Engine & Propeller Directorate, 12 damage to the airplane. because it addresses an unsafe condition
New England Executive Park, that is likely to exist or develop on
Burlington, MA. For information on the Relevant Service Information Under 1
products identified in this rulemaking
availability of this material at the FAA, CFR Part 51
action.
call 781–238–7125. We reviewed GE Service Bulletin (SB)
No. CF6–80E1 S/B 72–0529, Revision 1, Regulatory Findings
Examining the AD Docket
dated August 21, 2015. The SB We determined that this proposed AD
You may examine the AD docket on describes procedures for stripping, would not have federalism implications
the Internet at http:// inspecting, and replacing the seal tooth under Executive Order 13132. This
www.regulations.gov by searching for coating on the affected rotating CDP proposed AD would not have a
and locating Docket No. FAA–2015– seals. This service information is substantial direct effect on the States, on
4023; or in person at the Docket reasonably available because the the relationship between the national
Management Facility between 9 a.m. interested parties have access to it Government and the States, or on the
and 5 p.m., Monday through Friday, through their normal course of business distribution of power and
except Federal holidays. The AD docket or by the means identified in the responsibilities among the various
contains this proposed AD, the ADDRESSES section of this document. levels of government.
regulatory evaluation, any comments For the reasons discussed above, I
received, and other information. The Other Related Service Information
certify this proposed regulation:
street address for the Docket Office We reviewed GE CF6–80E1 (1) Is not a ‘‘significant regulatory
(phone: 800–647–5527) is in the (GEK99376) Engine Manual, Revision action’’ under Executive Order 12866,
ADDRESSES section. Comments will be 42, dated March 15, 2014. The engine
available in the AD docket shortly after (2) Is not a ‘‘significant rule’’ under
manual describes acceptable repair the DOT Regulatory Policies and
receipt. procedures for the seal teeth. Procedures (44 FR 11034, February 26,
FOR FURTHER INFORMATION CONTACT:
FAA’s Determination 1979),
Herman Mak, Aerospace Engineer,
We are proposing this AD because we (3) Will not affect intrastate aviation
Engine Certification Office, FAA, Engine
evaluated all the relevant information in Alaska to the extent that it justifies
& Propeller Directorate, 12 New England
and determined the unsafe condition making a regulatory distinction, and
Executive Park, Burlington, MA 01803;
phone: 781–238–7147; fax: 781–238– described previously is likely to exist or (4) Will not have a significant
7199; email: herman.mak@faa.gov. develop in other products of the same economic impact, positive or negative,
type design. on a substantial number of small entities
SUPPLEMENTARY INFORMATION:
under the criteria of the Regulatory
Comments Invited Proposed AD Requirements Flexibility Act.
We invite you to send any written This proposed AD would require List of Subjects in 14 CFR Part 39
relevant data, views, or arguments about stripping, inspecting, and recoating the
this proposal. Send your comments to teeth on the affected CDP seals. Air transportation, Aircraft, Aviation
an address listed under the ADDRESSES safety, Incorporation by reference,
Costs of Compliance Safety.
section. Include ‘‘Docket No. FAA–
2015–4023; Directorate Identifier 2015– We estimate that this proposed AD The Proposed Amendment
NE–29–AD’’ at the beginning of your will affect 6 engines installed on
comments. We specifically invite airplanes of U.S. registry. We also Accordingly, under the authority
comments on the overall regulatory, estimate that it will take about 7 hours delegated to me by the Administrator,
economic, environmental, and energy per engine to comply with this proposed the FAA proposes to amend 14 CFR part
aspects of this proposed AD. We will AD. The average labor rate is $85 per 39 as follows:
consider all comments received by the hour. Parts would cost about $7,835 per
engine. Based on these figures, we PART 39—AIRWORTHINESS
closing date and may amend this
estimate the total cost of this proposed DIRECTIVES
proposed AD because of those
comments. AD to U.S. operators to be $50,657.
■ 1. The authority citation for part 39
We will post all comments we Authority for This Rulemaking continues to read as follows:
receive, without change, to http://
www.regulations.gov, including any Title 49 of the United States Code Authority: 49 U.S.C. 106(g), 40113, 44701.
personal information you provide. We specifies the FAA’s authority to issue
§ 39.13 [Amended]
will also post a report summarizing each rules on aviation safety. Subtitle I,
substantive verbal contact we receive section 106, describes the authority of ■ 2. The FAA amends § 39.13 by adding
about this proposed AD. the FAA Administrator. Subtitle VII: the following new airworthiness
Aviation Programs, describes in more directive (AD):
Discussion detail the scope of the Agency’s General Electric Company: Docket No. FAA–
wgreen on DSK2VPTVN1PROD with PROPOSALS
We received reports from GE of cracks authority. 2015–4023; Directorate Identifier 2015–
in the teeth on two rotating CDP seals We are issuing this rulemaking under NE–29–AD.
found during engine shop visits. We the authority described in Subtitle VII, (a) Comments Due Date
learned that the current borazon-nickel Part A, Subpart III, Section 44701:
We must receive comments by January 19,
seal tooth coating oxidizes during ‘‘General requirements.’’ Under that 2016.
engine operation, which could lead to section, Congress charges the FAA with
reduced cutting action, overheating of promoting safe flight of civil aircraft in (b) Affected ADs
the seal teeth, and premature cracking of air commerce by prescribing regulations None.
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(c) Applicability phone: 781–238–7147; fax: 781–238–7199; • Fax: 202–493–2251.
This AD applies to all General Electric email: herman.mak@faa.gov. • Mail: U.S. Department of
Company (GE) CF6–80E1 turbofan engines (2) GE SB No. CF6–80E1 S/B 72–0529, Transportation, Docket Operations, M–
with rotating compressor discharge pressure Revision 1, dated August 21, 2015 can be 30, West Building Ground Floor, Room
obtained from GE using the contact
(CDP) seals, part number (P/N) 1669M73P02, W12–140, 1200 New Jersey Avenue SE.,
information in paragraph (i)(3) of this
installed. Washington, DC 20590.
proposed AD.
(d) Unsafe Condition (3) For service information identified in • Hand Delivery: U.S. Department of
this proposed AD, contact General Electric Transportation, Docket Operations, M–
This AD was prompted by reports from the
Company, GE Aviation, Room 285, 1 30, West Building Ground Floor, Room
manufacturer of cracks in the teeth of two
rotating CDP seals found during engine shop Neumann Way, Cincinnati, OH 45215; W12–140, 1200 New Jersey Avenue SE.,
visits. We are issuing this AD to prevent phone: 513–552–3272; email: Washington, DC, between 9 a.m. and 5
cracking of the CDP seal teeth, which can aviation.fleetsupport@ge.com. p.m., Monday through Friday, except
lead to uncontained part release, damage to (4) You may view this service information Federal holidays.
the engine, and damage to the airplane. at the FAA, Engine & Propeller Directorate, For service information identified in
12 New England Executive Park, Burlington, this proposed AD, contact Bombardier,
(e) Compliance MA. For information on the availability of
Inc., 400 Côte-Vertu Road West, Dorval,
(1) Comply with this AD within the this material at the FAA, call 781–238–7125.
Québec H4S 1Y9, Canada; telephone
compliance times specified, unless already Issued in Burlington, Massachusetts, on 514–855–5000; fax 514–855–7401; email
done. November 4, 2015. thd.crj@aero.bombardier.com; Internet
(2) After the effective date of this AD, strip Carlos A. Pestana,
coating, inspect, and recoat the teeth of the http://www.bombardier.com. You may
rotating CDP seal, P/N 1669M73P02, in Acting Directorate Manager, Engine & view this referenced service information
accordance with paragraph 3.C.(2) of GE Propeller Directorate, Aircraft Certification at the FAA, Transport Airplane
Service Bulletin (SB) No. CF6–80E1 S/B 72– Service. Directorate, 1601 Lind Avenue SW.,
0529, Revision 1, dated August 21, 2015, as [FR Doc. 2015–28898 Filed 11–16–15; 8:45 am] Renton, WA. For information on the
follows: BILLING CODE 4910–13–P availability of this material at the FAA,
(i) For engines that have had stationary call 425–227–1221.
CDP seal, P/N 1347M28G02, repaired or
replaced, strip coating, inspect, and recoat DEPARTMENT OF TRANSPORTATION Examining the AD Docket
the rotating CDP seal at the next engine shop You may examine the AD docket on
visit. Federal Aviation Administration the Internet at http://
(ii) For engines that have not had
www.regulations.gov by searching for
stationary CDP seal, P/N 1347M28G02, 14 CFR Part 39
repaired or replaced, strip coating, inspect, and locating Docket No. FAA–2015–
and recoat the rotating CDP seal at the next [Docket No. FAA–2015–4814; Directorate 4814; or in person at the Docket
part exposure. Identifier 2015–NM–105–AD] Management Facility between 9 a.m.
and 5 p.m., Monday through Friday,
(f) Definitions RIN 2120–AA64 except Federal holidays. The AD docket
(1) For the purpose of this AD, part contains this proposed AD, the
exposure is defined as removal of the Airworthiness Directives; Bombardier,
regulatory evaluation, any comments
compressor rear frame from the high-pressure Inc. Airplanes
received, and other information. The
compressor module.
AGENCY: Federal Aviation street address for the Docket Operations
(2) For the purpose of this AD, an engine
shop visit is defined as the induction of an Administration (FAA), DOT. office (telephone 800–647–5527) is in
engine into the shop for maintenance ACTION: Notice of proposed rulemaking the ADDRESSES section. Comments will
involving the separation of pairs of major (NPRM). be available in the AD docket shortly
mating engine flanges, except that the after receipt.
separation of engine flanges solely for the SUMMARY: We propose to adopt a new FOR FURTHER INFORMATION CONTACT:
purposes of transportation without airworthiness directive (AD) for certain Cesar Gomez, Aerospace Engineer,
subsequent engine maintenance does not Bombardier, Inc. Model CL–600–2B19 Airframe and Mechanical Systems
constitute an engine shop visit. (Regional Jet Series 100 & 440) Branch, ANE–171, FAA, New York
(g) Credit for Previous Action airplanes. This proposed AD was Aircraft Certification Office (ACO), 1600
prompted by the discovery of a number Stewart Avenue, Suite 410, Westbury,
If you stripped, inspected, and recoated the
CDP seal, P/N 1669M73P02, using the of incorrectly calibrated angle of attack NY 11590; telephone 516–228–7318; fax
procedures in ESM 72–31–10, REPAIR 002 of (AOA) transducers installed in the stall 516–794–5531.
the GE CF6–80E1 (GEK99376) Engine protection system. This proposed AD SUPPLEMENTARY INFORMATION:
Manual, Revision 42, dated March 15, 2014, would require replacement of
or earlier versions, then you met the incorrectly calibrated AOA transducers. Comments Invited
requirements of this AD. We are proposing this AD to detect and We invite you to send any written
(h) Alternative Methods of Compliance replace incorrectly calibrated AOA relevant data, views, or arguments about
(AMOCs) transducers; incorrect calibration of the this proposed AD. Send your comments
The Manager, Engine Certification Office, transducers could result in late to an address listed under the
FAA, may approve AMOCs to this AD. Use activation of the stick pusher. ADDRESSES section. Include ‘‘Docket No.
the procedures found in 14 CFR 39.19 to DATES: We must receive comments on FAA–2015–4814; Directorate Identifier
wgreen on DSK2VPTVN1PROD with PROPOSALS
make your request. You may email your this proposed AD by January 4, 2016. 2015–NM–105–AD’’ at the beginning of
request to: ANE-AD-AMOC@faa.gov. ADDRESSES: You may send comments, your comments. We specifically invite
(i) Related Information using the procedures found in 14 CFR comments on the overall regulatory,
(1) For more information about this AD, 11.43 and 11.45, by any of the following economic, environmental, and energy
contact Herman Mak, Aerospace Engineer, methods: aspects of this proposed AD. We will
Engine Certification Office, FAA, Engine & • Federal eRulemaking Portal: Go to consider all comments received by the
Propeller Directorate, 12 New England http://www.regulations.gov. Follow the closing date and may amend this
Executive Park, Burlington, MA 01803; instructions for submitting comments. proposed AD based on those comments.
VerDate Sep<11>2014 14:39 Nov 16, 2015 Jkt 238001 PO 00000 Frm 00005 Fmt 4702 Sfmt 4702 E:\FR\FM\17NOP1.SGM 17NOP1](https://thefederalregister.org/doc/80_FR_71968/page/3.svg)
Document Created: 2015-12-14 14:00:06
Document Modified: 2015-12-14 14:00:06
| 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 | Proposed Rules | |
| Action | Notice of proposed rulemaking (NPRM). | |
| Dates | We must receive comments on this proposed AD by January 19, 2016. | |
| Contact | Herman Mak, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7147; fax: 781-238-7199; email: [email protected] | |
| FR Citation | 80 FR 71747 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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