AD 87-04-14
Unsafe Condition
APU fuel leakage in the rear equipment bay and inadequate electrical bonding of the starter/generator to the airplane.
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Required Actions
Seal the APU plenum shroud at the turbine plenum drain outlet per BAe Service Bulletin 49-31-9286A, Revision 1. Install twin heavy duty bonding cables between the APU accessory case and ground terminal post 16 on the main engine beam per BAe Service Bulletin 49-32-9210A, Revision 1.
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Compliance Time
within 6 months after the effective date of this AD
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Affected Aircraft
British Aerospace Model DH/HS/BH-125 series airplanes identified in BAe Service Bulletins 49-31-9286A and 49-32-9210A, both Revision 1, dated March 24, 1986, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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