Airworthiness directives › 2000-02-02
AD 2000-02-02 Airworthiness Directives; Short Brothers Model SD3-60 SHERPA, SD3-SHERPA, and SD3-30 Series Airplanes
Models named: SD3-60 SHERPA, SD3-SHERPA series, SD3-30 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
All Model SD3-60 SHERPA and SD3-SHERPA series airplanes; and Model SD3-30 series airplanes as listed in Shorts Service Bulletin SD330-35-1, dated February 25, 1999; certificated in any category. Note 1: This AD applies to each airplane 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 airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (c) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.
Compliance
Required as indicated, unless accomplished previously. To prevent the loss of oxygen from the aircraft oxygen system, accomplish the following: Replacement (a) Within 24 months after the effective date of this AD, replace oxygen system “O” rings, part number (P/N) MS28778, with improved wear-resistant “O” rings, P/N MS9068, in accordance with Shorts Service Bulletins SD360 Sherpa-35-2, dated February 25, 1999 (for Model SD3-60 Sherpa series airplanes); SD3 Sherpa-35-3, Revision 1, dated May 5, 1999 (for Model SD3 Sherpa series airplanes); and SD330-35-1, dated February 25, 1999 (for Model SD3-30 series airplanes); as applicable. Spares (b) As of the effective date of this AD, no person shall install an oxygen system “O” ring, P/N MS28778, on any airplane. Alternative Methods of Compliance (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, International Branch, ANM-116, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, International Branch, ANM-116. Note 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the International Branch, ANM-116. Special Flight Permits (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 airplane to a location where the requirements of this AD can be accomplished. Incorporation by Reference (e) The actions shall be done in accordance with Shorts Service Bulletin SD3-60 Sherpa-35-2, dated February 25, 1999; Shorts Service Bulletin SD3 Sherpa-35-3, Revision 1, dated May 5, 1999; or Shorts Service Bulletin SD330-35-1, dated February 25, 1999; as applicable. Shorts Service Bulletin SD3 Sherpa-35-3, Revision 1, dated May 5, 1999, contains the following list of effective pages: Page No. Revision level shown on page Date shown on page 1, 4, 9, 10 1 May 5, 1999. 2, 3, 5-8, 11-14 Original February 25, 1999. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from Short Brothers, Airworthiness & Engineering Quality, P.O. Box 241, Airport Road, Belfast BT3 9DZ, Northern Ireland. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. Note 3: The subject of this AD is addressed in British airworthiness directives 007-02-99 (for Model SD3-60 Sherpa series airplanes), 006-02-99 (for Model SD3 Sherpa series airplanes), and 008-02-99 (for Model SD3-30 series airplanes). (f) This amendment becomes effective on February 29, 2000. Issued in Renton, Washington, on January 14, 2000. Donald L. Riggin, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 00-1502 Filed 1-24-00; 8:45 am] BILLING CODE 4910-13-U
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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