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Federal Register / Vol. 86, No. 176 / Wednesday, September 15, 2021 / Rules and Regulations Related Service Information Under 1
CFR Part 51

forward, aft, and bulk cargo compartment door. For certain airplanes, EASA AD 20210049
describes procedures for implementing an operational limitation prohibiting flying the airplane over a route having a diversion time of more than 60
minutes. This material is reasonably available because the interested parties
EASA AD 20210049 describes procedures for repetitive cleaning and greasing of affected cargo door seals;
replacing the forward, aft, and bulk cargo compartment door seals with new seals; and installing a placard on the
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have access to it through their normal course of business or by the means identified in the ADDRESSES section.
Costs of Compliance The FAA estimates that this AD
affects 1,728 airplanes of U.S. registry.
The FAA estimates the following costs to comply with this AD:

ESTIMATED COSTS FOR REQUIRED ACTIONS
Labor cost
Parts cost
Cost per product
Retained actions from AD
2020-16-01.
New actions

1 work-hour $85 per hour = $85.
Up to 11 work-hours $85
per hour = Up to $935.

$0

$85

$146,880.

Up to $6,760

Up to $7,695

Up to $13,296,960.

Authority for This Rulemaking
List of Subjects in 14 CFR Part 39

Title 49 of the United States Code specifies the FAAs 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 Agencys authority.
The FAA is 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.

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

Regulatory Findings
khammond on DSKJM1Z7X2PROD with RULES

Cost on U.S.
operators
Action
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 Will not affect intrastate aviation in Alaska, and 3 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.

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15:50 Sep 14, 2021

Jkt 253001

Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:

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

Amended
2. The FAA amends 39.13 by adding the following new airworthiness directive:

20211804 Airbus SAS: Amendment 39
21705; Docket No. FAA20210368;
Project Identifier MCAI202100204T.
a Effective Date This airworthiness directive AD is effective October 20, 2021.
b Affected ADs This AD affects AD 20201601, Amendment 3921185 85 FR 47013, August 4, 2020 AD 20201601.
c Applicability This AD applies to all Airbus SAS
airplanes specified in paragraphs c1
through 4 of this AD, certificated in any category.
1 Model A318111, 112, 121, and 122
airplanes.
2 Model A319111, 112, 113, 114, 115, 131, 132, 133, 151N, 153N, and 171N airplanes.
3 Model A320211, 212, 214, 216, 231, 232, 233, 251N, 252N, 253N, 271N, 272N, and 273N airplanes.
4 Model A321111, 112, 131, 211, 212, 213, 231, 232, 251N, 252N,
PO 00000

Frm 00003

Fmt 4700

Sfmt 4700

253N, 271N, 272N, 251NX, 252NX, 253NX, 271NX, and 272NX airplanes.
d Subject Air Transport Association ATA of America Code 26, Fire protection; 52, Doors.
e Reason This AD was prompted by reports of low halon concentration in the forward and aft cargo compartments due to air leakage through cargo door seals, and the certification of improved cargo door seals.
The FAA is issuing this AD to address low halon concentration, which could affect the fire extinguishing system efficiency in the cargo compartments and possibly result in failure of the system to contain a cargo compartment fire.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Requirements Except as specified in paragraph h of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency EASA AD 20210049, dated February 18, 2021 EASA AD 20210049.
h Exceptions to EASA AD 20210049
1 Where EASA AD 20210049 refers to its effective date, this AD requires using the effective date of this AD.
2 Where paragraph 1 of EASA AD 2021
0049 refers to June 20, 2020 the effective date of EASA AD 20200133, dated June 10, 2020, this AD requires using August 19, 2020 the effective date of AD 20201601.
However, operators only need to show compliance with this AD for the cleaning and greasing actions required by paragraph 1 of EASA AD 20210049 that are accomplished on or after the effective date of this AD. As of the effective date of this AD, operators do not need to show compliance with the cleaning and greasing actions required by AD
20201601 for any cargo door seal having part number p/n D5237106020000, D5237106020200, D5237106020400, D5237300120000, or D5237300120200; or
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