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Federal Register / Vol. 86, No. 112 / Monday, June 14, 2021 / Proposed Rules
20210044 for additional background information.
Related Service Information Under 1
CFR Part 51
EASA AD 20210044 requires an initial detailed inspection for certain helicopters inside the overhead panel for chafing of the cable harnesses and for correct clearance between the anchor nuts/screws and the cable harnesses, of the screws for correct length, and of the supports for sound bonding, and corrective actions if necessary;
repetitive detailed inspections for all helicopters inside the overhead panel for the condition of the white protective tape on the anchor nuts, and for chafing of the cable harnesses and for correct clearance between the anchor nuts/
screws and the cable harnesses, and corrective actions if necessary.
Corrective actions include applying a white protective tape on the anchor nuts, replacement of incorrect length screws, replacement of damaged cables and fuses, rerouting of cable harnesses, replacement of supports, and removal and replacement of the white protective tape.
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 These helicopters 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 European
Union, EASA, its technical representative, has notified the FAA of the unsafe condition described in its AD. 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 on other helicopters of the same type design.
Proposed AD Requirements This proposed AD would require accomplishing the actions specified in EASA AD 20210044, described previously, as incorporated by reference, except for any differences identified as exceptions in the regulatory text of this proposed AD and except as discussed under Differences Between this Proposed AD and the EASA AD.

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
20210044 that is required for compliance with EASA AD 20210044
will be available on the internet at https www.regulations.gov by searching for and locating Docket No.
FAA20210461 after the FAA final rule is published.
Differences Between This Proposed AD
and the EASA AD

Explanation of Required Compliance Information In the FAAs ongoing efforts to improve the efficiency of the AD
process, the FAA developed a process to use certain civil aviation authority CAA ADs as the primary source of information for compliance with requirements for corresponding FAA
ADs. The FAA has been coordinating with other manufacturers and CAAs. As a result, EASA AD 20210044 will be incorporated by reference in the FAA
final rule. This proposed AD would, therefore, require compliance with EASA AD 20210044 in its entirety, through that incorporation, except for any differences identified as exceptions in the regulatory text of this proposed
Although EASA AD 20210044 and the service information referenced in EASA AD 20210044 specify to submit certain information to the manufacturer, this AD does not include that requirement.
Interim Action The FAA considers this proposed AD
interim action. If final action is later identified, the FAA might consider further rulemaking then.
Costs of Compliance The FAA estimates that this that this AD, if adopted as proposed, would affect 128 helicopters of U.S. Registry.
The FAA estimates the following costs to comply with this proposed AD:

ESTIMATED COSTS FOR REQUIRED ACTIONS
Cost on U.S.
operators
Action
Labor cost
Parts cost
Cost per product
Inspection for chafing, clearance, screw length, and bonding.
Repetitive inspections for chafing, clearance, and tape condition.

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

$0

$85

$10,880.

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

$0 per inspection cycle
$85 per inspection cycle.

$10,880 per inspection cycle.

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:

lotter on DSK11XQN23PROD with PROPOSALS1

ESTIMATED COSTS OF ON-CONDITION ACTIONS
Labor cost
Replace screws, cables, fuses, supports, and protective tape; reroute harnesses.
Apply protective tape
Replace cables, fuses and protective tape

5 work-hours $85 per hour = $425

$600

$1.025

1 work-hour $85 per hour = $85
1 work-hour $85 per hour = $85

50
600

135
685

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Parts cost
Cost per product
Action
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