AD 81-04-51 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-81 (MD-81) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series Airplanes |
| aircraft | The Boeing Company | DC-9-82 (MD-82) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series Airplanes |
| aircraft | The Boeing Company | DC-9-83 (MD-83) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series Airplanes |
| aircraft | The Boeing Company | DC-9-87 (MD-87) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series Airplanes |
Unsafe Condition
Unscheduled deployment of the thrust reversers during approach prior to touchdown.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Flight crew must disengage the autothrottle during approach before reaching 50 feet AGL. Placard each aircraft with 'Disengage ATS on approach before reaching 50 feet AGL.' Revise the FAA-approved Airplane Flight Manual to include this limitation in the limitations section.
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Compliance Time
Effective immediately after the effective date of this AD for the flight crew action. Within 48 hours calendar time after receipt of this AD for placarding and AFM revision.
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Affected Aircraft
McDonnell Douglas Model DC-9-80 series airplanes, fuselage numbers 924 through 1017 inclusive.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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