AD 91-24-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-11 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-12 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-13 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-14 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-15 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-15F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-21 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-31 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-32 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-32 (VC-9C) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 and DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
Unsafe Condition
The lap belt connector or buckle may jam the passenger entrance door hinge, obstructing the opening of the door.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the outboard attendant seat lap belt to determine if the connector or buckle can reach and interfere with the lower hinge of the passenger entrance door. If obstructed, modify the installation to use a shorter lap belt half. If not obstructed, no further action is needed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within six months after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All Model DC-9 and DC-9-80 series airplanes, Model MD-88 airplanes, and C-9 (military) airplanes, certified in any category.
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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