Airworthiness directives › 99-21-12
AD 99-21-12 Airworthiness Directives; British Aerospace (Jetstream) Model 4101 Airplanes
Models named: 4101. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
All Jetstream Model 4101 airplanes, 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 (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.
Compliance
Required as indicated, unless accomplished previously. To prevent electrical arcing due to damaged fuel standby pump cable assemblies and conduit pipes, which could create a possible ignition source, and consequent fire hazard, accomplish the following: Corrective Actions (a) Within 6 months after the effective date of this AD, accomplish the following actions [[Page 54769]] required by paragraphs (a)(1) and (a)(2) of this AD in accordance with Jetstream Service Bulletin J41-28-010, Revision 1, dated September 7, 1999. (1) Perform a one-time visual inspection of the conduit pipe (left and right), which carries the fuel standby pump cable assembly into the dry bay of the wing, for distortion (i.e., damage) or repairs. If any distortion or repair is found, prior to further flight, replace the conduit pipe with a new pipe, part number 14128032-403 (left) or part number 14128032-405 (right). (2) Replace fuel standby pump cable assemblies (left and right) with new cable assemblies, part number F5-71-1. Note 2: Inspections or replacements that have been accomplished prior to the effective date of this AD in accordance with Jetstream Service Bulletin J41-28-010, dated April 5, 1999, are considered acceptable for compliance with the applicable action specified by this 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 Secs. 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 Jetstream Service Bulletin J41-28-010, Revision 1, dated September 7, 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 British Aerospace Regional Aircraft, 13850 Mclearen Road, Herndon, Virginia 20171. 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 British airworthiness directive 005-04-99. (e) This amendment becomes effective on November 12, 1999. Issued in Renton, Washington, on September 29, 1999. D.L. Riggin, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 99-25931 Filed 10-7-99; 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