AD 2001-15-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney | JT8D Series | Airworthiness Directives; Pratt & Whitney JT8D Series Turbofan Engines |
Unsafe Condition
Machining damage to the tie rod, counterweight, and pin holes on certain 2nd stage compressor disks could cause rupture of the disk, leading to an uncontained engine failure and damage to the airplane.
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Required Actions
Remove from service 2nd stage compressor disks with part numbers 745902, 790832, and 807502, identified by serial number in the Accomplishment Instructions of PW JT8D Alert Service Bulletin JT8D A6336, Revision 1, dated June 29, 1999, prior to accumulating 2,000 cycles since new.
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Compliance Time
Prior to accumulating 2,000 cycles since new.
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Affected Aircraft
Pratt & Whitney JT8D-9, -9A, -11, -15, -15A, -17, -17A, -17R, and -17AR series turbofan engines with 2nd stage compressor disks, part numbers 745902, 790832, and 807502, installed. These engines are installed on, but not limited to, Boeing 727 series airplanes, Boeing 737-100 and -200 series airplanes, and McDonnell Douglas DC-9 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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