Airworthiness directives › 97-09-05
AD 97-09-05 Airworthiness Directives; Raytheon Model BAe 125-1000A and Model Hawker 1000 Series Airplanes
Makes named: raytheon. Models named: BAe 125-1000A, Model Hawker 1000 series, BAe 125-1000B series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
All Model BAe 125-1000A and Model Hawker 1000 series 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 otherwise 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. Note 2: Raytheon Model BAe 125-1000B series airplanes are similar in design to the airplanes that are subject to the requirements of this AD and, therefore, also may be subject to the unsafe condition addressed by this AD. However, as of the effective date of this AD, those models are not type certificated for operation in the United States. Airworthiness authorities of countries in which Model BAe 125-1000B series airplanes are approved for operation should consider adopting corrective action, applicable to those models, that is similar to the corrective action required by this AD.
Compliance
Required as indicated, unless accomplished previously. To prevent inadequate venting of cabin pressure in the event of rapid decompression, which could cause failure or deformation of certain structural members, and consequent reduced controllability of the airplane, accomplish the following: (a) Within 8 months after the effective date of this AD, accomplish the requirements of paragraphs (a)(1), (a)(2), and (a)(3) of this AD. Note 3: The manufacturer has advised that the modifications required by paragraph (a)(2) and (a)(3) of this AD should be incorporated concurrently. (1) Install a pressure relief flap in the rear luggage compartment of the bulkhead at frame 19 (Modification No. 25A683C), in accordance with Raytheon Service Bulletin SB.21-151-25A683C, dated July 12, 1994. (2) Enlarge two lightening holes, and add one new lightening hole in the rail web of the right-hand seat between frames 10B and 10D, and remove the fiberglass infill cover located outboard of the floor panels between frame 8 and frame 10B (Modification SB.253661B), in accordance with Raytheon Service Bulletin SB.53-81- 3661B, dated February 25, 1994. (3) Install two new vent holes in the underfloor diaphragm of frame 10D (Modification 253627A), in accordance with Raytheon Service Bulletin SB.53-76-3627A, dated February 25, 1994. (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, Standardization Branch, ANM-113, 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, Standardization Branch, ANM-113. Note 4: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch, ANM-113. (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. (d) The actions shall be done in accordance with Raytheon Service Bulletin SB.21-151-25A683C, dated July 12, 1994; Raytheon Service Bulletin SB.53-81-3661B, dated February 25, 1994; and Raytheon Service Bulletin SB.53-76-3627A, dated February 25, 1994. 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 Raytheon Aircraft Company, Manager Service Engineering, Hawker Customer Support Department, P.O. Box 85, Wichita, Kansas 67201-0085. 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. (e) This amendment becomes effective on May 30, 1997. Issued in Renton, Washington, on April 17, 1997. Darrell M. Pederson, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 97-10564 Filed 4-24-97; 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