AD 81-16-06 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-10-10 | Airworthiness Directives; McDONNELL DOUGLAS DC-10 Series Airplanes |
| aircraft | The Boeing Company | DC-10-10F | Airworthiness Directives; McDONNELL DOUGLAS DC-10 Series Airplanes |
| aircraft | The Boeing Company | DC-10-15 | Airworthiness Directives; McDONNELL DOUGLAS DC-10 Series Airplanes |
| aircraft | The Boeing Company | DC-10-30 | Airworthiness Directives; McDONNELL DOUGLAS DC-10 Series Airplanes |
| aircraft | The Boeing Company | DC-10-30F (KC-10A, KDC-10) | Airworthiness Directives; McDONNELL DOUGLAS DC-10 Series Airplanes |
| aircraft | The Boeing Company | DC-10-40 | Airworthiness Directives; McDONNELL DOUGLAS DC-10 Series Airplanes |
| aircraft | The Boeing Company | DC-10-40F | Airworthiness Directives; McDONNELL DOUGLAS DC-10 Series Airplanes |
Unsafe Condition
Temporary loss of all electrical flight instruments and lighting due to generator frequency exceeding 420 Hz when generators are operated in parallel or nonparalleled configurations.
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Required Actions
Incorporate a revision in the Airplane Flight Manual's Limitations Section specifying pre-takeoff engine RPM stabilization above 60% N2 and generator frequency checks below 420 Hz. For night or IMC operations, perform procedures to operate generators nonparalleled before descending below 10,000 feet MSL. Alternatively, install new voltage sensing relay components per McDonnell Douglas Service Bulletin 24-116.
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Compliance Time
within 10 days after the effective date of this AD
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Affected Aircraft
McDonnell Douglas Model DC-10 series airplanes certificated in all categories
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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