AD 96-19-17
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 757-200 Series | Airworthiness Directives; Boeing Model 757 Series Airplanes |
| aircraft | The Boeing Company | 757-200CB Series | Airworthiness Directives; Boeing Model 757 Series Airplanes |
| aircraft | The Boeing Company | 757-200PF Series | Airworthiness Directives; Boeing Model 757 Series Airplanes |
| aircraft | The Boeing Company | 757-300 Series | Airworthiness Directives; Boeing Model 757 Series Airplanes |
Unsafe Condition
Improper installation of the main battery shunt and ground stud connection can create an open circuit or high resistance in the connection of the main battery ground stud, causing an interruption of the battery charger and loss of the hot battery bus (HBB).
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Required Actions
Inspect the main battery shunt for contaminated fasteners, missing pressure washers, incorrect part number washers, or damage to terminal posts or plastic base, and replace with a serviceable part if necessary. Inspect certain wires, washers, and brass jam nuts for discrepancies and replace with serviceable parts if necessary. Inspect and adjust the torque and electrical resistance of the main battery ground stud installation if necessary.
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Compliance Time
Required as indicated, unless accomplished previously.
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Affected Aircraft
Boeing Model 757-200 Series, 757-200CB Series, 757-200PF Series, 757-300 Series airplanes listed in Boeing Alert Service Bulletin 757-24A0079 dated August 8, 1996.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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