Airworthiness directives › 97-12-02
AD 97-12-02 Airworthiness Directives; McDonnell Douglas Helicopter Systems MD900 Helicopters
Models named: MD900. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model MD900 helicopters, with adjustable collective drive link assembly (link assembly), part number (P/N) 900C2010233-103 or -105, installed, certificated in any category. [[Page 61225]] 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 (b) 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 prevent failure of the link assembly, which could result in loss of control of the helicopter, accomplish the following: (a) Before further flight, remove the link assembly, P/N 900C2010233-103 or -105, and replace with link assembly, P/N 900C2010233-107. (b) 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, Los Angeles Aircraft Certification Office. Operators shall submit their requests through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Los Angeles Aircraft Certification Office. Note 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Los Angeles Aircraft Certification Office. (c) Special flight permits will not be issued. (d) This amendment becomes effective on December 2, 1997. Issued in Fort Worth, Texas, on November 6, 1997. Eric Bries, Acting Manager, Rotorcraft Directorate, Aircraft Certification Service. [FR Doc. 97-30058 Filed 11-14-97; 8:45 am] BILLING CODE 4910-13-U
Read the original on the Federal Register →
You just looked this one up by hand
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1