Voglio sapere a riguardo di…

Federal Register / Vol. 86, No. 94 / Tuesday, May 18, 2021 / Proposed Rules and for certain helicopters, ensuring the correct interface between certain TGB
actuating rods and bearings.
This material 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.
FAAs Determination and Requirements of This Proposed AD
These products have been approved by the aviation authority of another country, and are approved for operation in the United States. Pursuant to the bilateral agreement with the State of Design Authority, the FAA has been notified of the unsafe condition described in the MCAI referenced above. The FAA is proposing this AD
after evaluating all the relevant information and determining the unsafe condition described previously is likely to exist or develop in other products of these same type designs.
Proposed AD Requirements This proposed AD would require accomplishing the actions specified in EASA AD 20190060, described previously, as incorporated by reference, except for any differences identified as exceptions in the regulatory text of this proposed AD.
Explanation of Required Compliance Information In the FAAs ongoing efforts to improve the efficiency of the AD
process, the FAA initially worked with Airbus and EASA to develop a process
26859

to use certain EASA ADs as the primary source of information for compliance with requirements for corresponding FAA ADs. The FAA has since coordinated with other manufacturers and civil aviation authorities CAAs to use this process. As a result, EASA AD
20190060 will be incorporated by reference in the FAA final rule. This proposed AD would, therefore, require compliance with EASA AD 20190060
in its entirety, through that incorporation, except for any differences identified as exceptions in the regulatory text of this proposed AD.
Using common terms that are the same as the heading of a particular section in the EASA AD does not mean that operators need comply only with that section. For example, where the AD
requirement refers to all required actions and compliance times, compliance with this AD requirement is not limited to the section titled Required Actions and Compliance Times in the EASA AD. Service information specified in EASA AD
20190060 that is required for compliance with EASA AD 20190060
will be available on the internet at https www.regulations.gov by searching for and locating Docket No.
FAA20210369 after the FAA final rule is published.

service bulletins; however this proposed AD identifies those service bulletins as Aerospatiale service bulletins.
EASA AD 20190060 specifies the date for AS355 SB No. 67.09 Revision 2, as March 28, 1989; however, this proposed AD identifies the date as October 1989.

Differences Between This Proposed AD
and the MCAI
EASA AD 20190060 specifies AS350 SB service bulletin No. 67.10
Revision 1 and AS355 SB No. 67.09
Revision 2 as Airbus Helicopters AH

Costs of Compliance
Part Marking Clarification Where paragraph 2 of EASA AD
20190060 specifies mark each affected part all rods, regardless of the status with respect to the dye penetrant inspection, this proposed AD would require marking TGB actuating rods identified in paragraphs c1 through 9 of this proposed AD regardless of their manufacturing date. The manufacturing dates in Table 1 of EASA
AD 20190060 are used only to indicate the parts on which the dye penetrant inspection specified in paragraph 1 of EASA AD 20190060 is done; the manufacturing dates do not impact the parts on which the marking specified in paragraph 2 of EASA AD 2019006
must be done.
Interim Action The FAA considers this proposed AD
interim action. If final action is later identified, the FAA might consider further rulemaking then.
The FAA estimates that this proposed AD affects 950 helicopters of U.S.
registry. The FAA estimates the following costs to comply with this proposed AD:

ESTIMATED COSTS FOR REQUIRED ACTIONS
Labor cost
Parts cost
Cost per product
Cost on U.S.
operators
6 work-hours $85 per hour = $510

$0

$510

$484,500

Table does not include estimated costs for reporting.

The FAA estimates that it would take about 1 hour per product to comply with the proposed reporting requirement in this proposed AD. The average labor rate is $85 per hour. Based
on these figures, the FAA estimates the cost of reporting the inspection results on U.S. operators to be $80,750, or $85
per product.
The FAA estimates the following costs to do any necessary on-condition
actions that would be required based on the results of any required actions. The FAA has no way of determining the number of helicopters that might need these on-condition actions:

ESTIMATED COSTS OF ON-CONDITION ACTIONS

jbell on DSKJLSW7X2PROD with PROPOSALS

Labor cost
Parts cost
Up to 16 work-hours X $85 per hour = $1,360

Paperwork Reduction Act A federal agency may not conduct or sponsor, and a person is not required to
VerDate Sep<11>2014

16:10 May 17, 2021

Jkt 253001

respond to, nor shall a person be subject to penalty for failure to comply with a collection of information subject to the
PO 00000

Frm 00005

Fmt 4702

Sfmt 4702

$2,590

Cost per product Up to $3,950.

requirements of the Paperwork Reduction Act unless that collection of information displays a current valid
E:FRFM18MYP1.SGM

18MYP1