AD 96-07-11 Airworthiness Directives; Beech Model BAe 125-1000A and Hawker 1000 Series Airplanes

Makes named: beech. Models named: BAe 125-1000A, Hawker 1000 series. Read the applicability below — it usually turns on serial or part numbers too.

All Model BAe 125-1000A and 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 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 chafing damage to the hydraulic pipe and subsequent hydraulic fluid leakage; this condition may lead to failure of essential airplane systems, accomplish the following: (a) Within 3 months after the effective date of this AD, perform a detailed visual inspection to detect chafing damage to the hydraulic pipes located aft of frame 21 and adjacent to the hydraulic module, in accordance with Hawker Service Bulletin SB.29- 95, dated March 24, 1995. (1) If no chafing damage is detected, prior to further flight, perform a visual inspection to determine if adequate clearance exists between the intersecting pipe runs, and between pipes and adjacent equipment or structure, in accordance with the service bulletin. (i) If the clearance is adequate, no further action is required by this AD. (ii) If the clearance is inadequate, prior to further flight, adjust the pipe connections and/or clipping to restore adequate clearance, in accordance with the service bulletin. (iii) If any chafing damage to other equipment or structure is found, prior to [[Page 14961]] further flight, repair it in accordance with a method approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. (2) If any chafing damage is detected and it is beyond the limits specified in paragraph 2.B.(4) of the service bulletin, prior to further flight, replace the damaged pipe with a new pipe in accordance with the service bulletin. (3) If any chafing damage is detected within the limits specified in paragraph 2.B.(4) of the service bulletin, prior to further flight, perform a pressure test or replace the damaged pipe with a new pipe in accordance with the service bulletin. (i) If the pipes are satisfactory, no further action is required by this AD. (ii) If any pipe leaks and/or if any distortion occurs in or around the area of chafing damage, prior to further flight, replace the pipe with a new pipe in accordance with the service bulletin. (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 2: 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 Hawker Service Bulletin SB.29-95, dated March 24, 1995. 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 Beech Aircraft Corporation, 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 6, 1996. Issued in Renton, Washington, on March 27, 1996. Darrell M. Pederson, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 96-7960 Filed 4-3-96; 8:45 am] BILLING CODE 4910-13-U