Voglio sapere a riguardo di…

Federal Register / Vol. 86, No. 84 / Tuesday, May 4, 2021 / Rules and Regulations include the referenced global AMOC, are approved as AMOCs for the corresponding provisions of this AD.
Therefore, no change to this AD is necessary regarding this issue.
Request for Correction of Typographical Error Boeing and HNA requested the FAA
correct a typographical error for the effective date of AD 20192210, which is referenced in paragraph h1 of the proposed AD as October 3, 3019, when the correct date is October 3, 2019.
The FAA agrees with the commenters request. The FAA has corrected the effective date of AD 20192210 in paragraph h1 of this AD accordingly.
Conclusion The FAA 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, and minor editorial changes. The FAA
has determined that these minor changes:

Are consistent with the intent that was proposed in the NPRM for addressing the unsafe condition; and Do not add any additional burden upon the public than was already proposed in the NPRM.
The FAA also determined that these changes will not increase the economic burden on any operator or increase the scope of this AD.
Related Service Information Under 1
CFR Part 51
The FAA reviewed Boeing MultiOperator Message MOMMOM20
044301B R1, dated June 2, 2020. This service information specifies procedures for repetitive detailed inspections for cracking of the leftand right-hand outboard chords of the STA 663.75
frame fittings and failsafe straps around eight fasteners adjacent to the stringer S18A straps.
This AD also requires Boeing MultiOperator Message MOMMOM19
062301B, dated November 5, 2019, which the Director of the Federal Register approved for incorporation by reference as of November 13, 2019 84
FR 61533, November 13, 2019.

23597

This AD also requires Boeing MultiOperator Message MOMMOM19
053601B, dated September 30, 2019, which the Director of the Federal Register approved for incorporation by reference as of October 3, 2019 84 FR
52754, October 3, 2019.
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.
Interim Action The FAA considers this AD interim action. The inspection reports that are required by this AD will enable the manufacturer to obtain better insight into the nature, cause, and extent of the cracking, and eventually to develop final action to address the unsafe condition. Once final action has been identified, the FAA might consider further rulemaking.
Costs of Compliance The FAA estimates that this AD
affects 1,911 airplanes of U.S. registry.
The FAA estimates the following costs to comply with this AD:

ESTIMATED COSTS
Action
Labor cost
Inspection retained action from AD 20192210.
Reporting retained action from AD
20192210.
Inspection new action

1 work-hour $85 per hour = $85
per inspection cycle.
1 work-hour $85 per hour = $85

$0

1 work-hour $85 per hour = $85
per inspection cycle.
1 work-hour $85 per hour = $85

0

Reporting new action

The FAA has received no definitive data that would enable the agency to provide cost estimates for the oncondition actions specified in this AD.

khammond on DSKJM1Z7X2PROD with RULES

Paperwork Reduction Act A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB control number. The control number for the collection of information required by this AD is 21200056. The paperwork cost associated with this AD
has been detailed in the Costs of Compliance section of this document and includes time for reviewing instructions, as well as completing and reviewing the collection of information.
Therefore, all reporting associated with this AD is mandatory. Comments
VerDate Sep<11>2014

16:02 May 03, 2021

Jkt 253001

Parts cost
Cost per product
0

0

Cost on U.S. operators
$85 per inspection cycle.
$85

$162,435 per inspection cycle.

$85 per inspection cycle.
$85

$162,435 per inspection cycle.

$162,435.

$162,435.

concerning the accuracy of this burden and suggestions for reducing the burden should be directed to Information Collection Clearance Officer, Federal Aviation Administration, 10101
Hillwood Parkway, Fort Worth, TX
761771524.

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.

Authority for This Rulemaking
Regulatory Findings
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
The FAA has determined that 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
PO 00000

Frm 00021

Fmt 4700

Sfmt 4700

E:FRFM04MYR1.SGM

04MYR1