AD 90-16-51 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-11 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, DC-9-30, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-12 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, DC-9-30, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-13 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, DC-9-30, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-14 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, DC-9-30, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-15 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, DC-9-30, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-15F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, DC-9-30, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-31 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, DC-9-30, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-32 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, DC-9-30, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-32 (VC-9C) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, DC-9-30, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-32F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, DC-9-30, and C-9 (Military) Series Airplanes |
Unsafe Condition
Inadvertent opening of the main cargo door during flight due to failure of cargo door latch spool fitting attach bolts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a torque test on the cargo door latch spool fitting attach bolts per McDonnell Douglas DC-9 Service Bulletin 52-119, Revision 1. Replace bolts if they break before further flight. Retorque and seal bolts if they pass the test before further flight. Exempt Inconel bolts with part numbers RA21026-7-28, 77711-7-28, and 3D0031-7-28 from the test.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 14 calendar days after the effective date of this amendment, unless previously accomplished
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Model DC-9-10, DC-9-30, and C-9 (military) series airplanes equipped with a forward upper cargo door
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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