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Federal Register / Vol. 86, No. 137 / Wednesday, July 21, 2021 / Rules and Regulations List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.

20211316 General Electric Company:
Amendment 3921621; Docket No.
FAA20210102; Project Identifier AD
202001270E.

The Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:

a Effective Date
PART 39AIRWORTHINESS
DIRECTIVES

c Applicability
1. The authority citation for part 39
continues to read as follows:

Authority: 49 U.S.C. 106g, 40113, 44701.
39.13

Amended
e Unsafe Condition
This airworthiness directive AD is effective August 25, 2021.

This AD was prompted by a report of a crack in the lower fuel manifold. The FAA
is issuing this AD to detect cracking of the lower fuel manifold. The unsafe condition, if not addressed, could result in failure of the fuel manifold, engine fire, and damage to the airplane.

b Affected ADs
f Compliance
None.
This AD applies to General Electric Company GE GEnx2B67, GEnx2B67/P, and GEnx2B67B model turbofan engines with lower fuel manifold, part number P/N
2619M58G01, installed.
d Subject
2. The FAA amends 39.13 by adding the following new airworthiness directive:

38409

Joint Aircraft System Component JASC
Code 7310, Engine Fuel Distribution.

Comply with this AD within the compliance times specified, unless already done.
g Required Actions 1 Within the compliance time specified in Table 1 to paragraph g1 of this AD, perform either an ultrasonic inspection USI, an on-wing spot fluorescent penetrant inspection FPI, or an in-shop FPI of the lower fuel manifold, P/N 2619M58G01, in accordance with paragraph g1i, ii, or iii of this AD, as applicable.

TABLE 1 TO PARAGRAPH g1COMPLIANCE TIME
Lower fuel manifold cycles since new CSN
Less than 1,700 CSN
1,700 CSN or more

Compliance time After the lower fuel manifold has accumulated 1,700 CSN, but before it exceeds 2,200 CSN.
Within 500 engine flight cycles FCs after the effective date of this AD.

i Perform a USI of the lower fuel manifold at the locations adjacent to the five support block pads to detect cracks in accordance with paragraph 4. AppendixA of GEnx2B
Service Bulletin SB 730089 R01, dated January 11, 2021.
ii Perform an on-wing spot FPI of the lower fuel manifold at the five brazed block joints to detect cracks. Guidance on performing the spot FPI can be found in paragraph 3.B.6a of GEnx2B SB 730089
R01, dated January 11, 2021.
iii Perform an in-shop FPI of the lower fuel manifold at the five brazed block joints to detect cracks. Guidance on performing the FPI can be found in paragraph 3.C.4 of GEnx2B SB 730089 R01, dated January 11, 2021.
2 If a crack or rejectable indication is found during the USI, on-wing spot FPI, or in-shop FPI required by paragraphs g1i, ii, and iii of this AD, before further flight, remove the lower fuel manifold from service and replace it with a part eligible for installation.

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h Definition For the purpose of this AD, a part eligible for installation is:
1 Any serviceable lower fuel manifold, P/N 2619M58G01, with less than 1,700 CSN, or 2 Any lower fuel manifold, P/N
2619M58G01, with 1,700 CSN or more that has been inspected in accordance with paragraph g1i, ii, or iii of this AD and a crack or rejectable indication was not found, or 3 Any approved lower fuel manifold with a part number other than P/N 2619M58G01.

VerDate Sep<11>2014

15:58 Jul 20, 2021

Jkt 253001

i No Reporting Requirements
m Material Incorporated by Reference
The reporting requirements specified in paragraph 4. AppendixA of GE GEnx2B
SB 730089 R01, dated January 11, 2021, are not required by this AD.

1 The Director of the Federal Register approved the incorporation by reference IBR of the service information listed in this paragraph under 5 U.S.C. 552a and 1 CFR
part 51.
2 You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise.
i GE GEnx2B Service Bulletin 730089
R01, dated January 11, 2021.
ii Reserved 3 For General Electric Company service information identified in this AD, contact General Electric Company, 1 Neumann Way, Cincinnati, OH 45215; phone: 513 552
3272; email: aviation.fleetsupport@
ae.ge.com; website: www.ge.com.
4 You may view this service information at FAA, Airworthiness Products Section, Operational Safety Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call 781 2387759.
5 You may view this service information that is incorporated by reference at the National Archives and Records Administration NARA. For information on the availability of this material at NARA, email: fedreg.legal@nara.gov, or go to:
https www.archives.gov/federal-register/cfr/
ibr-locations.html.

j Credit for Previous Actions You may take credit for the actions required by paragraph g1 of this AD if you performed these actions before the effective date of this AD using GE GEnx2B SB 73
0089 R00, dated May 8, 2020.
k Alternative Methods of Compliance AMOCs 1 The Manager, ECO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14
CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in Related Information. You may email your request to: ANE-AD-AMOC@
faa.gov.
2 Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/
certificate holding district office.
l Related Information For more information about this AD, contact Alexei Marqueen, Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781
2387178; fax: 781 2387199; email:
Alexei.T.Marqueen@faa.gov.

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Issued on June 17, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202115397 Filed 72021; 8:45 am BILLING CODE 491013P

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