The engines that Delta and ValuJet sent to Turkey for overhaul were done at a certified repair station, too. They used defective replacement parts and somebody died.
The Valujet a/c fire on the runway @ ATL
was one of engines they bought in the deal with THY for some of their DC-9-30s (along with engines and parts), but the a/c itself was an ex-DL DC-9-30. At that time, the maintenance records on those a/c and engines was spotty at best, Valujet did not use them as a repair station, they just bought a/c and spares from THY, so caveat emptor
, as they probably assumed everything was on the level. The engine that failed and caused this fire was overhauled in 1991, some 4 years prior to the incident, and two years prior to Valujet's start.
The DL MD
-88 engine failure @ PNS
was not an engine overhauled or purchased from Turkey or any other country. The NTSB report:
The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
the fracture of the left engine's front compressor fan hub, which resulted from the failure of Delta Air Lines' fluorescent penetrant inspection process to detect a detectable fatigue crack initiating from an area of altered microstructure that was created during the drilling process by Volvo for Pratt & Whitney and that went undetected at the time of manufacture. Contributing to the accident was the lack of sufficient redundancy in the in-service inspection program. (NTSB Report AAR
Delta does not farm out too much if any of their a/c maintenance; on the other hand, Delta TechOps does do heavy maintenance and engine maintenance for a number of airlines, like Air France, World Airways, Air Berlin, and even the US military.
[Edited 2004-12-11 17:39:00]