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Federal Register / Vol. 86, No. 28 / Friday, February 12, 2021 / Rules and Regulations
Actions Since AD 20201902 Was Issued Since the FAA issued AD 202019
02, it was identified that the compliance time for the initial visual inspection of T/R blade P/N 330A120006all dash numbers with a de-icing system was inadvertently stated as within 30 hours time-in-service TIS. This final rule corrects this compliance time to within 15 hours TIS.
Since the FAA issued AD 202019
02, it was also identified that the parts prohibition requirement could cause confusion about when the inspections must be accomplished prior to installation. This final rule clarifies this.
Additionally, this final rule clarifies the applicability by identifying that T/
R blade P/N 330A120005all dash numbers is without a de-icing system installed and that T/R blade P/N
330A120006all dash numbers is with a de-icing system installed. This final rule also clarifies the required actions by adding the P/Ns.
FAAs Determination These helicopters have been approved by EASA and are approved for operation in the United States. Pursuant to the FAAs bilateral agreement with the European Union, EASA has notified the FAA about the unsafe condition described in its AD. The FAA is proposing this AD after evaluating all known relevant information and determining that the unsafe condition described previously is likely to exist or develop on other helicopters of the same type design.
Related Service Information Under 1
CFR Part 51
The FAA reviewed Airbus Helicopters Emergency Alert Service Bulletin No.
05.101, Revision 0, dated March 21, 2016, for Model SA330J helicopters with certain T/R blades with and without a de-icing system installed.
This service information specifies procedures for a visual and in-depth inspection of the T/R blades for skin debonding and an eddy current inspection of the T/R blades for a crack using various crack detectors.
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.
AD Requirements This AD requires, for T/R blade P/N
330A120006all dash numbers with a de-icing system, within 15 hours TIS
after the effective date of this AD or within 15 hours TIS after last inspecting the T/R blade as required by paragraph
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f1 of AD 20201902, whichever occurs first, and thereafter at intervals not to exceed 15 hours TIS; and for T/
R blade P/N 330A120005all dash numbers without a de-icing system, within 30 hours TIS after the effective date of this AD, or within 30 hours TIS
after last inspecting the T/R blade as required by paragraph f1 of AD 2020
1902, whichever occurs first, and thereafter at intervals not to exceed 30
hours TIS:
Accomplishing a visual and indepth inspection of each T/R blade for debonding. If there is debonding within allowable limits, this AD requires repairing or replacing the T/R blade. If there is debonding that exceeds allowable limits, this AD requires replacing the T/R blade.
Eddy current inspecting each T/R
blade for a crack. If there is a crack, this AD requires replacing the T/R blade.
This AD also prohibits installing an affected T/R blade on any helicopter unless it passes the inspections required by this AD.
Differences Between This AD and the EASA AD
The EASA AD requires returning a T/
R blade with a discrepancy to Airbus Helicopters; whereas this AD requires repairing or replacing the T/R blade if there is debonding within allowable limits and replacing the T/R blade if there is debonding that exceeds allowable limits or a crack instead.
Justification for Immediate Adoption and Determination of the Effective Date Section 553b3B 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 553d of the APA
authorizes agencies to make rules effective in less than thirty days, upon a finding of good cause.
An unsafe condition exists that requires the immediate adoption of this AD without providing an opportunity for public comments prior to adoption.
The FAA has found that the risk to the flying public justifies foregoing notice and comment prior to adoption of this rule because the initial instance of the repetitive inspections must be completed within 15 or 30 hours TIS, a time period of up to approximately two months based on the average flight-hour
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utilization rates of these helicopters.
Accordingly, notice and opportunity for prior public comment are impracticable and contrary to the public interest pursuant to 5 U.S.C. 553b3B.
In addition, the FAA finds that good cause exists pursuant to 5 U.S.C. 553d for making this amendment effective in less than 30 days, for the same reasons the FAA found good cause to forego notice and comment.
Comments Invited The FAA invites you to send any written data, views, or arguments about this final rule. Send your comments to an address listed under ADDRESSES.
Include Docket No. FAA20210027;
Project Identifier MCAI202100048R
at the beginning of your comments. The most helpful comments reference a specific portion of the final rule, explain the reason for any recommended change, and include supporting data.
The FAA will consider all comments received by the closing date and may amend this final rule because of those comments.
Except for Confidential Business Information CBI as described in the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to https
www.regulations.gov, including any personal information you provide. The agency will also post a report summarizing each substantive verbal contact received about this final rule.
Confidential Business Information CBI is commercial or financial information that is both customarily and actually treated as private by its owner.
Under the Freedom of Information Act FOIA 5 U.S.C. 552, CBI is exempt from public disclosure. If your comments responsive to this AD contain commercial or financial information that is customarily treated as private, that you actually treat as private, and that is relevant or responsive to this AD, it is important that you clearly designate the submitted comments as CBI. Please mark each page of your submission containing CBI as PROPIN. The FAA
will treat such marked submissions as confidential under the FOIA, and they will not be placed in the public docket of this AD. Submissions containing CBI
should be sent to Matt Fuller, AD
Program Manager, General Aviation &
Rotorcraft Unit, Airworthiness Products Section, Operational Safety Branch, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone 817 222
5110; email matthew.fuller@faa.gov.
Any commentary that the FAA receives which is not specifically designated as
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