AD 2000-11-29 Airworthiness Directives; Fokker Model F27 Mark 050, 100, 200, 300, 400, 500, 600, and 700 Series Airplanes; and Model F28 Mark 0070, 0100, 1000, 2000, 3000, and 4000 Series Airplanes

Models named: F27 Mark 050, 100, 200, 300, 400, 500, 600, 700 series, F28 Mark 0070, 0100. Read the applicability below — it usually turns on serial or part numbers too.

Model F27 Mark 050, 100, 200, 300, 400, 500, 600, and 700 series airplanes; and Model F28 Mark 0070, 0100, 1000, 2000, 3000, and 4000 series airplanes; certificated in any category; on which any Pacific Scientific Model 0108900 series flight crew shoulder harness assembly is installed. 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 (b) 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.

Required as indicated, unless accomplished previously. To prevent failure of the shoulder harness, which could result in injury to the flight crew during extremely turbulent flight conditions or during emergency landing or stopping conditions, accomplish the following: Functional Test (a) Within 6 months after the effective date of this AD, perform a one-time functional test to verify correct installation of the shoulder harnesses of the pilot's and co-pilot's seats, in accordance with paragraph (a)(1), (a)(2), (a)(3), or (a)(4) of this AD, as applicable. If any shoulder harness is incorrectly installed, prior to further flight, replace the shoulder harness assembly with a new or serviceable shoulder harness assembly, in accordance with paragraph (a)(1), (a)(2), (a)(3), or (a)(4) of this AD, as applicable. (1) For Model F27 Mark 050 series airplanes: Accomplish the actions in accordance with Fokker Service Bulletin SBF50-25-051, dated October 14, 1999. (2) For Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 series airplanes: Accomplish the actions in accordance with Fokker Service Bulletin SBF27/25-65, Revision 1, dated March 1, 2000. (3) For Model F28 Mark 0070 and 0100 series airplanes: Accomplish the actions in accordance with Fokker Service Bulletin SBF100-25-088, dated October 14, 1999. (4) For Model F28 Mark 1000, 2000, 3000, and 4000 series airplanes: Accomplish the actions in accordance with Fokker Service Bulletin SBF28/25-103, dated October 14, 1999. Note 2: Accomplishment of the actions in accordance with Fokker Service Bulletin SBF27/25-65, dated October 14, 1999, is acceptable for compliance with the requirements of paragraph (a)(2) of the AD. Alternative Methods of Compliance (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, 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 3: 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 (c) 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 (d) The actions shall be done in accordance with Fokker Service Bulletin SBF50-25-051, dated October 14, 1999; Fokker Service Bulletin SBF27/25-65, Revision 1, dated March 1, 2000; Fokker Service Bulletin SBF100-25-088, dated October 14, 1999; or Fokker Service Bulletin SBF28/25-103, dated October 14, 1999; as applicable. Fokker Service Bulletin SBF27/25-65, Revision 1, dated March 1, 2000, contains the following list of effective pages:   Page number Revision level shown on page Date shown on page 1, 4-6 1 March 1, 2000. 2-3 Original October 14, 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 Fokker Services B.V., P.O. Box 231, 2150 AE Nieuw-Vennep, the Netherlands. 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 4: The subject of this AD is addressed in Dutch airworthiness directive BLA 1999-139 (A), dated October 29, 1999. (e) This amendment becomes effective on July 19, 2000. Issued in Renton, Washington, on June 6, 2000. Donald L. Riggin, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 00-14792 Filed 6-13-00; 8:45 am] BILLING CODE 4910-13-P