NONE · Boeing B737-300 · 1999-09-12 · WEST PALM BEACH, FL, USA
Event
NTSB number
MIA99FA252
Event ID
20001212X19822
Type
Accident
Date
1999-09-12
Location
WEST PALM BEACH, FL, USA
Coordinates
26.660362, -80.090438
Injuries
Highest injury
NONE
Fatal
0
Serious
0
Minor
0
Uninjured
89
Total aboard
89
Aircraft
Make
Boeing
Model
B737-300
Registration
N17356
FAR Part
121
Engines
2
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
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.