AD 85-06-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-11 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-12 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-13 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-14 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-15 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-15F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-21 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-31 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-32 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-32 (VC-9C) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and C-9 (Military) Airplanes |
Unsafe Condition
The potential for a localized fire and the potential loss of the Battery Direct and Battery Buses which provide emergency electrical power.
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Required Actions
Modify Sundstrand P/N 26340061-04 battery chargers by following Sundstrand Service Bulletin 26340061-24-2 and McDonnell Douglas DC-9 Service Bulletin 24-73. Compliance is required within 90 days for chargers with serial numbers listed in Section I, paragraph 4.A. of the service bulletin, and within 180 days for all other affected chargers.
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Compliance Time
Within 90 days after the effective date of this AD for paragraph A, and within 180 days after the effective date of this AD for paragraph B.
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Affected Aircraft
McDonnell Douglas Model DC-9 and C-9 (Military) airplanes equipped with Sundstrand P/N 26340061-04 battery charger.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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