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Federal Register / Vol. 86, No. 23 / Friday, February 5, 2021 / Rules and Regulations hours and the part costs about $32,000, for an estimated cost of $32,425 per helicopter. If required, replacing a swashplate guide takes about 6 workhours and the part costs about $2,000, for an estimated cost of $2,510 per helicopter.
Authority for This Rulemaking 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.
Regulatory Findings 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, I certify that this AD:
1 Is not a significant regulatory action under Executive Order 12866, and 2 Will not affect intrastate aviation in Alaska.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.
Adoption of the Amendment
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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.

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39.13

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

20210220 Helicopteres Guimbal:
Amendment 3921403; Docket No.
FAA20201177; Project Identifier MCAI202001336R.
a Effective Date This airworthiness directive AD is effective February 22, 2021.
b Affected ADs None.
c Applicability This AD applies to Helicopteres Guimbal Model Cabri G2 helicopters, certificated in any category, with rotating or non-rotating scissor fitting part number P/N G1200
200, installed on the main rotor hub MRH
or swashplate guide, respectively.
d Subject Joint Aircraft Service Component JASC
Code: 6700, Rotorcraft Flight Control.
e Unsafe Condition This AD was prompted by a report of a crack in a rotating scissor fitting. The FAA
is issuing this AD to detect a crack and prevent failure of a scissor fitting. The unsafe condition, if not addressed, could result in failure of a rotating or non-rotating scissor fitting and subsequent loss of control of the helicopter.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Required Actions 1 Within 30 hours time-in-service TIS or 30 calendar days, whichever occurs first:
i Remove the cotter pins and bolts connecting the rotating and non-rotating scissor fitting by following the Required Actions, IPC 4.12a, of Guimbal Service Bulletin SB 20012, Revision B, dated October 5, 2020 SB 20012 Rev B. Remove the cotter pins from service. Clean each scissor fitting. Using a flashlight, visually inspect each scissor fitting by following the Required Actions, IPC 4.12b, of SB 20012
Rev B.
ii If there is a crack, before further flight, replace the MRH or swashplate guide, as applicable.
iii If there is not a crack, reassemble the scissor fittings by following the Required Actions, IPC 4.12c, of SB 20012 Rev B.
2 Thereafter, within 50 hours TIS or 6
months, whichever occurs first, and at intervals not to exceed 50 hours TIS or 6
months, whichever occurs first:
i Leaving each rotating and non-rotating scissor fitting assembled, clean each scissor fitting. Using a flashlight, visually inspect each scissor fitting by following the Required Actions, IPC 4.12a, of Guimbal Service Bulletin SB 20011, Revision C, dated October 5, 2020.

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ii If there is a crack, before further flight, replace the MRH or swashplate guide, as applicable.
3 As of the effective date of this AD, do not install an MRH or swashplate guide, with rotating or non-rotating scissor fitting P/N
G1200200 installed, respectively, on any helicopter, even if new, unless the actions required by paragraph g1 of this AD have been accomplished.
h Credit for Previous Actions 1 This paragraph provides credit for the actions required by paragraph g1 of this AD if you accomplished Guimbal Service Bulletin SB 20012, Revision A, dated September 1, 2020, before the effective date of this AD.
2 This paragraph provides credit for the first instance of the actions required by paragraph g2 of this AD if you accomplished Guimbal Service Bulletin SB
20011, Revision B, dated September 1, 2020, before the effective date of this AD.
i Special Flight Permits A special flight permit may be permitted provided that there are no passengers onboard, and the flight is operating under day Visual Flight Rules, for the purpose of ferrying the helicopter to an authorized maintenance facility.
j Alternative Methods of Compliance AMOCs 1 The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph k1 of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov.
2 Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/
certificate holding district office.
k Related Information 1 For more information about this AD, Fred Guerin, Aerospace Engineer, General Aviation & Rotorcraft Section, International Validation Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone 206
2313500; email fred.guerin@faa.gov.
2 Guimbal Service Bulletin SB 20011, Revision B, and SB 20012, Revision A, each dated September 1, 2020, which are not incorporated by reference, contain additional information about the subject of this AD. For service information identified in this AD, contact Helicopteres Guimbal, Basile Ginel, 1070, rue du Lieutenant Parayre, Aerodrome dAix-en-Provence, 13290 Les Milles, France;
telephone 330442391088; email basile.ginel@guimbal.com; web https
www.guimbal.com. You may view this referenced service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N
321, Fort Worth, TX 76177. For information
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