Document ID: FAA-2021-0259-0011
Agency: faa
Document Type: Rule
Title: Airworthiness Directives: CFM International, S.A. Turbofan Engines
Posted Date: 2022-03-01T05:00Z

[Federal Register Volume 87, Number 40 (Tuesday, March 1, 2022)]
[Rules and Regulations]
[Pages 11289-11290]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-04149]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2021-0259; Project Identifier AD-2020-01128-E; 
Amendment 39-21900; AD 2022-02-03]
RIN 2120-AA64

Airworthiness Directives; CFM International, S.A. Turbofan 
Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; correction.

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SUMMARY: The FAA is correcting an airworthiness directive (AD) that 
published in the Federal Register. The AD applies to CFM International, 
S.A. CFM56-3 and CFM56-7B model turbofan engines with certain accessory 
gearbox assembly (AGB) not equipped with a dynamic oil seal assembly in 
the handcranking pad. As published, the part numbers (P/Ns) listed in 
paragraph (i)(2)(i) are incorrect. This document corrects that error. 
In all other respects, the original document remains the same; however, 
for clarity, the FAA is publishing the entire rule in the Federal 
Register.

DATES: This correction is effective March 22, 2022. The effective date 
of AD 2022-02-03 remains March 22, 2022.

ADDRESSES: For service information identified in this final rule, 
contact CFM International, S.A., Aviation Operations Center, 1 Neumann 
Way, M/D Room 285, Cincinnati, OH 45125; phone: (877) 432-3272; email: 
[email protected]. You may view this service information at the 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 (817) 222-5110. It is 
also available at https://www.regulations.gov by searching for and 
locating Docket No. FAA-2021-0259.

Examining the AD Docket

    You may examine the AD docket at https://www.regulations.gov by 
searching for and locating Docket No. FAA-2021-0259, or in person at 
Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, 
except Federal holidays. The AD docket contains this final rule, any 
comments received, and other information. The address for Docket 
Operations is 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: Kevin Clark, Aviation Safety Engineer, 
ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 
(781) 238-7088; fax: (781) 238-7199; email: [email protected].

SUPPLEMENTARY INFORMATION: AD 2022-02-03, 39-21961 (87 FR 8402, 
February 15, 2022) (AD 2022-02-03), requires independent inspection to 
verify re-installation of the AGB handcranking pad cover after 
maintenance. AD 2022-02-03 also requires the replacement of the 
affected AGB with a part eligible for installation as a terminating 
action to the inspection requirement.

Need for the Correction

    As published, the P/Ns listed in paragraph (i)(2)(i) of the AD, 
which defines a part eligible for installation, are incorrect. The P/Ns 
were incorrectly listed as 340-046-503-0, 340-046-504-0, and 340-046-
505-0. The correct P/Ns are 335-300-103-0, 335-300-105-0, 335-300-106-
0, 335-300-107-0, 335-300-108-0, 335-300-109-0, and 335-300-110-0.
    Although no other part of the preamble or regulatory information 
has been corrected, for clarity, the FAA is publishing the entire rule 
in the Federal Register.
    The effective date of this AD remains March 22, 2022.

Good Cause for Adoption Without Prior Notice

    Section 553(b)(3)(B) of the Administrative Procedure Act (APA) (5 
U.S.C. 551 et seq.) authorizes agencies to dispense with notice and 
comment procedures for rules when the agency for ``good cause'' finds 
that those procedures are ``impracticable, unnecessary, or contrary to 
the public interest.'' Under this section, an agency, upon finding good 
cause, may issue a final rule without providing notice and seeking 
comment prior to issuance. Further, section 553(d) of the APA 
authorizes agencies to make rules effective in less than thirty days, 
upon a finding of good cause.
    The FAA has found that the risk to the flying public justifies 
foregoing notice and comment prior to adoption of this rule because 
this action corrects P/Ns that were correctly identified in a notice of 
proposed rulemaking, which published in the Federal Register on May 3, 
2021 (86 FR 23301). Accordingly, notice and opportunity for prior 
public comment are unnecessary pursuant to 5 U.S.C. 553(b).
    In addition, the FAA finds that good cause exists pursuant to 5 
U.S.C. 553(d) for making this amendment effective in less than 30 days, 
for the same reasons the FAA found good cause to forego notice and 
comment.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Correction

    Accordingly, pursuant to the authority delegated to me by the 
Administrator, the Federal Aviation Administration amends part 39 of 
the Federal Aviation Regulations (14 CFR part 39) by correcting 87 FR 
8402, (February 15, 2022), beginning at page 8405, column 2 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   [Corrected]

0
2. The FAA amends Sec.  39.13 by:
0
a. Removing airworthiness directive 2013-26-01, Amendment 39-17710 (78 
FR 79295, December 30, 2013); and
0
b. Adding the following new airworthiness directive:

2022-02-03 CFM International, S.A.: Amendment 39-21900; Docket No. 
FAA-2021-0259; Project Identifier AD-2020-01128-E.

(a) Effective Date

    This airworthiness directive (AD) is effective March 22, 2022.

(b) Affected ADs

    This AD replaces AD 2013-26-01, Amendment 39-17710 (78 FR 79295, 
December 30, 2013).

(c) Applicability

    This AD applies to CFM International, S.A. CFM56-3 and CFM56-7B 
model turbofan engines equipped with an accessory gearbox (AGB) 
assembly with the following part numbers (P/Ns):
    (1) For CFM56-3, CFM56-3B, and CFM56-3C model turbofan engines, 
AGB P/N: 335-

[[Page 11290]]

300-103-0, 335-300-105-0, 335-300-106-0, 335-300-107-0, 335-300-108-
0, 335-300-109-0, or 335-300-110-0, installed.
    (2) For CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3, CFM56-7B22, 
CFM56-7B22/2, CFM56-7B22/3, CFM56-7B22/3B1, CFM56-7B22/B1, CFM56-
7B24, CFM56-7B24/2, CFM56-7B24/3, CFM56-7B24/3B1, CFM56-7B24/B1, 
CFM56-7B26, CFM56-7B26/2, CFM56-7B26/3, CFM56-7B26/3B1, CFM56-7B26/
3B2, CFM56-7B26/3B2F, CFM56-7B26/3F, CFM56-7B26/B1, CFM56-7B26/B2, 
CFM56-7B27, CFM56-7B27/2, CFM56-7B27/3, CFM56-7B27/3B1, CFM56-7B27/
3B1F, CFM56-7B27/3B3, CFM56-7B27/3F, CFM56-7B27/B1, and CFM56-7B27/
B3 model turbofan engines, AGB P/N: 340-046-503-0, 340-046-504-0, or 
340-046-505-0, installed.
    (3) For CFM56-7B27A, CFM56-7B27A/3, or CFM56-7B27AE model 
turbofan engines, AGB P/N: 340-188-601-0, 340-188-603-0, or 340-188-
605-0, installed.

(d) Subject

    Joint Aircraft System Component (JASC) Code 7260, Turbine Engine 
Accessory Drive.

(e) Unsafe Condition

    This AD was prompted by a dual engine loss of oil event and 42 
prior events of total loss of engine oil during flight. The FAA is 
issuing this AD to prevent loss of engine oil while in flight. The 
unsafe condition, if not addressed, could result in engine failure, 
loss of thrust control, reduced control of the aircraft, and damage 
to the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Required Actions

    (1) After the effective date of this AD, after any maintenance 
that involves removal and re-installation of the AGB handcranking 
pad cover, perform an independent inspection to verify re-
installation of the AGB handcranking pad cover; or
    (2) Prior to the next removal of the AGB handcranking pad cover 
from the engine, insert the independent inspection required by 
paragraph (g)(1) of this AD as a required inspection item in the 
existing approved continuous airworthiness maintenance program for 
the aircraft.

(h) Mandatory Terminating Action

    As a mandatory terminating action to the requirements of 
paragraph (g) of this AD:
    (1) For affected CFM56-3, CFM56-3B, and CFM56-3C model turbofan 
engines, at the next engine shop visit, or before December 31, 2026, 
whichever occurs first after the effective date of this AD, replace 
the affected AGB with a part eligible for installation.
    (2) For affected CFM56-7B model turbofan engines, except for 
CFM56-7B27A, CFM56-7B27A/3, and CFM56-7B27AE model turbofan engines, 
at the next engine shop visit, or before December 31, 2024, 
whichever occurs first after the effective date of this AD, replace 
the affected AGB with a part eligible for installation.

(i) Definition

    (1) For the purpose of this AD, an ``engine shop visit'' is the 
induction of an engine into the shop for maintenance involving the 
separation of pairs of major mating engine case flanges, except for 
the following situations, which do not constitute an engine shop 
visit:
    (i) Separation of engine flanges solely for the purposes of 
transportation of the engine without subsequent maintenance; or
    (ii) Separation of engine flanges solely for the purpose of 
replacing the fan or propulsor without subsequent maintenance.
    (2) For the purpose of this AD, for affected CFM56-3, CFM56-3B, 
and CFM56-3C model turbofan engines, a part eligible for 
installation is:
    (i) An AGB with a P/N other than 335-300-103-0, 335-300-105-0, 
335-300-106-0, 335-300-107-0, 335-300-108-0, 335-300-109-0, 335-300-
110-0; or
    (ii) An AGB that, using an FAA-approved procedure, has been re-
worked with a dynamic oil seal in the handcranking pad cover 
assembly and re-identified with a new P/N not listed in paragraph 
(i)(2)(i) of this AD.
    Note 1 to paragraph (i)(2)(ii): Procedures to install a dynamic 
oil seal in the handcranking pad cover assembly can be found in CFM 
International SB CFM56-3 S/B 72-1129, Revision 7, dated May 6, 2020.
    (3) For the purpose of this AD, for affected CFM56-7B model 
turbofan engines, except for CFM56-7B27A, CFM56-7B27A/3, and CFM56-
7B27AE model turbofan engines, a part eligible for installation is:
    (i) An AGB with a P/N other than 340-046-503-0, 340-046-504-0, 
or 340-046-505-0; or
    (ii) An affected AGB that, using an FAA-approved procedure, has 
been re-worked with a dynamic oil seal in the handcranking pad cover 
assembly and re-identified with a new P/N not listed in paragraph 
(i)(3)(i) of this AD.
    Note 2 to paragraph (i)(3)(ii): Procedures to install a dynamic 
oil seal in the handcranking pad cover assembly can be found in CFM 
International SB CFM56-7B S/B 72-0879, Revision 7, dated February 
10, 2021, CFM56-7B S/B 72-0564, Revision 9, dated December 3, 2021, 
or CFM56-7B S/B 72-1071, initial issue, dated December 3, 2021.

(j) 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 paragraph (k) of this AD. You may email your request 
to: [email protected].
    (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.

(k) Related Information

    For more information about this AD, contact Kevin Clark, 
Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue, 
Burlington, MA 01803; phone: (781) 238-7088; fax: (781) 238-7199; 
email: [email protected].

(l) Material Incorporated by Reference

    None.

    Issued on February 23, 2022.
Derek Morgan,
Acting Director, Compliance & Airworthiness Division, Aircraft 
Certification Service.
[FR Doc. 2022-04149 Filed 2-28-22; 8:45 am]
BILLING CODE 4910-13-P