Airworthiness Directive 02-21832
one-timeAirworthiness Directives; Pratt & Whitney JT8D Series Turbofan Engines
What this AD requires
This amendment supersedes an existing airworthiness directive (AD), that is applicable to certain Pratt & Whitney JT8D series turbofan engines. That AD currently requires revisions to the Time Limits Section (TLS) of the manufacturer's Engine Manuals (EM's) to include required enhanced inspection of selected critical life-limited parts at each piece-part exposure. This amendment requires modification of the airworthiness limitations section of the manufacturer's manual and an air carrier's approved continuous airworthiness maintenance program to incorporate additional inspection requirements. A Federal Aviation Administration (FAA) study of in- service events involving uncontained failures of critical rotating engine parts indicated the need for mandatory inspections. The mandatory inspections are needed to identify those critical rotating parts with conditions, which if allowed to continue in service, could result in uncontained failures. The actions specified by this AD are intended to prevent critical life-limited rotating engine part failure, which could result in an uncontained engine failure and damage to the airplane.
Which aircraft AD 02-21832 applies to
AD requires revising the Time Limits Section of the JT8D-1/-1A/-1B/-7/-7A/-7B/-9/-9A/-11/-15/-15A/-17/-17A/-17R/-17AR Turbofan Engine Manual (P/N 481672), and the approved continuous airworthiness maintenance program for air carriers, to add critical life-limited part inspection requirements for 1st/2nd/13th stage compressor disks and 1st/2nd/3rd/4th stage turbine disks (all part numbers within each listed component) whenever the part is disassembled and has accumulated more than 100 cycles since its last piece-part inspection.
Whether AD 02-21832 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
Supersession
Supersedes AD 2000-21-08.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.