Airworthiness directives › 98-13-39
AD 98-13-39 Airworthiness Directives; Eurocopter France Model AS 332C, L, and L1 Helicopters
Applicability*9
AS 332C, L, and L1 helicopters, with tail rotor shaft flapping hinge retainer, part number 330A33.3165.00, installed, certificated in any category. Note 1: This AD applies to each helicopter identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For helicopters that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must use the authority provided in paragraph (c) to request approval from the FAA. This approval may address either no action, if the current configuration eliminates the unsafe condition, or different actions necessary to address the unsafe condition described in this AD. Such a request should include an assessment of the effect of the changed configuration on the unsafe condition addressed by this AD. In no case does the presence of any modification, alteration, or repair remove any helicopter from the applicability of this AD.
Compliance
Required as indicated, unless accomplished previously. To detect cracks on a tail rotor shaft flapping hinge retainer (retainer) that could lead to high tail rotor vibrations, loss of tail rotor control, and subsequent loss of control of the helicopter, accomplish the following: (a) Prior to further flight, and thereafter before the first flight of each day, perform a dye penetrant inspection of each retainer for cracks. (b) If a crack is found on any retainer, replace it with an airworthy retainer. Note 2: Eurocopter Service Bulletin No. 05.00.41, dated January 29, 1996, pertains to the subject of this AD. (c) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Rotorcraft Standards Staff, Rotorcraft Directorate, FAA. Operators shall submit their requests through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Rotorcraft Standards Staff. Note 3: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Rotorcraft Standards Staff. (d) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the helicopter to a location where the requirements of this AD can be accomplished. (e) This amendment becomes effective on July 31, 1998. Note 4: The subject of this AD is addressed in Direction Generale De L'Aviation Civile (France) AD 96-074-057(B), dated March 27, 1996. Issued in Fort Worth, Texas, on June 18, 1998. Eric Bries, Acting Manager, Rotorcraft Directorate, Aircraft Certification Service. [FR Doc. 98-17041 Filed 6-25-98; 8:45 am] BILLING CODE 4910-13-P
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