Accident · 1999-09-12
What the record says
- Event date
- 1999-09-12
- Event type
- Accident
- Highest injury level
- No injuries
- Aircraft
- Boeing B737-300 (N17356)
- Operating rule
- Part 121
- Operator
- CONTINENTAL AIRLINES INC Operator named in NTSB report
- Operated by (per NTSB report)
- CONTINENTAL AIRLINES
Probable cause
The fatigue fracture and separation of the high pressure turbine forward rotating air seal due to a manufacturing defect in a bolt hole that was not detected by the engine manufacturer due to inadequate and ineffective inspection techniques. Contributing to the accident was the engine manufacturers failure to provide adequate hole making requirements at the time the forward rotating air seal was manufactured and the engine manufacturers failure at the time of last inspection to require eddy current inspections for the high pressure turbine forward rotating air seal bolt holes.
Source: NTSB case MIA99FA252Flight crew
Flight-crew details for this event aren't in the NTSB database extract we hold (its coverage starts with 2008 events) — a gap in our data, not an absence of crew.
Facts as the NTSB records them — GroundCheck adds no judgement. Preliminary records may be revised as the investigation proceeds.