Airworthiness directives › 2010-18-52
AD 2010-18-52 Airworthiness Directives; MD Helicopters, Inc. Model MD900 Helicopters
Models named: MD900. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model MD900 helicopters, with lower main rotor hub (hub), part number 900R2101008-103, -105, and -107, installed, certificated in any category.
Compliance
Required as indicated, unless accomplished previously. To detect a crack in the hub and prevent the failure of the hub and subsequent loss of control of the helicopter, do the following: (a) Within 4 hours time-in-service, visually inspect the hub for a crack, paying particular attention to the area of the 5 flex beam bolt hole locations. If you find a crack, before further flight, replace the hub with an airworthy hub. (b) If you find a crack, within 10 days, report the finding to Roger Durbin, Aviation Safety Engineer, FAA, Los Angeles Aircraft Certification Office, Airframe Branch, e-mail Roger.Durbin@faa.gov or fax (562) 627-5210. (c) A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control Number for this information collection is 2120-0056. Public reporting for this collection of information is estimated to be approximately 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave., SW., Washington, DC 20591, Attn: Information Collection Clearance Officer, AES-200. (d) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. Contact the Manager, Los Angeles Aircraft Certification Office, FAA, ATTN: Roger Durbin, Aviation Safety Engineer, Airframe Branch, 3960 Paramount Blvd., Lakewood, California 90712, telephone (562) 627-5233, fax (562) 627-5210, for information about previously approved alternative methods of compliance. (e) The Joint Aircraft System/Component (JASC) Code is 6220: Main Rotor Head. (f) This amendment becomes effective on December 1, 2010, to all persons except those persons to whom it was made immediately effective by Emergency AD 2010-18-52, issued August 23, 2010, which contained the requirements of this amendment. Issued in Fort Worth, Texas, on November 5, 2010. Lance T. Gant, Acting Manager, Rotorcraft Directorate, Aircraft Certification Service. [FR Doc. 2010-28456 Filed 11-15-10; 8:45 am] BILLING CODE 4910-13-P
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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