AD 90-01-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-10-30 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-30, -30F, -40, and KC-10A (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-10-30F (KC-10A, KDC-10) | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-30, -30F, -40, and KC-10A (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-10-40 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-30, -30F, -40, and KC-10A (Military) Series Airplanes |
Unsafe Condition
Loss of main landing gear brake effectiveness due to excessive wear exceeding specified limits on Aircraft Braking Systems brakes, part numbers 5000758-2, -3, -5, -4, -6, and -10.
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Required Actions
Replace brakes with part numbers 5000758-4, -6, -10 or modified versions, inspect for wear limits (0.75 inch initially, then 0.50 inch, then 0.90 inch after modification), incorporate wear limits into maintenance programs, and modify brakes with extra-long piston sleeves and dust seal boots per Service Bulletin 32-218.
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Compliance Time
Within 90 days after October 14, 1988 (effective date of Amendment 39-6034) for initial replacement and inspections; within 30 days after January 31, 1990 (effective date of this amendment) for subsequent inspections and incorporation of 0.50 inch limits; within 180 days after January 31, 1990 for modifications with new sleeves and boots.
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Affected Aircraft
MCDONNELL DOUGLAS DC-10-30, -30F, -40, and KC-10A (Military) series airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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