AD 91-25-03 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-11 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series, C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-12 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series, C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-13 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series, C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-14 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series, C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-15 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series, C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-15F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series, C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-21 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series, C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-31 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series, C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-32 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series, C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-32 (VC-9C) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series, C-9 (Military) Airplanes |
Unsafe Condition
Loss of main landing gear braking effectiveness due to main landing gear brakes worn beyond the maximum wear limit.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect landing gear brakes with specified part numbers for wear within 270 days after the effective date. Replace any brake worn beyond the listed maximum wear limit (in inches) prior to further flight. Incorporate the maximum brake wear limits into the FAA-approved maintenance inspection program within 270 days after the effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 270 days after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
MCDONNELL DOUGLAS DC-9 series, including C-9 (military) airplanes equipped with Aircraft Braking System (ABS) brake part numbers listed in the AD.
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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