Serious incident Boeing 737-291 N7351F, Wednesday 29 August 1984

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Date:	Wednesday 29 August 1984
Time:	14:50 LT
Type:	Boeing 737-291
Owner/operator:	Frontier Airlines
Registration:	N7351F
MSN:	22384/718
Year of manufacture:	1980
Engine model:	P&W JT8D-9A
Fatalities:	Fatalities: 0 / Occupants: 108
Other fatalities:	0
Aircraft damage:	None
Category:	Serious incident
Location:	Madison, WI - United States of America
Phase:	Initial climb
Nature:	Passenger - Scheduled
Departure airport:	Madison, WI (KMSN)
Destination airport:	Rockford, IL (KRFD)
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
SHORTLY AFTER LIFT-OFF & WHILE CLIMBING THRU ABOUT 150 FT AGL, THERE WAS A LOUD NOISE FROM THE LEFT ENG WHEN IT FAILED. THE AIRCREW SECURED THE LEFT ENG, RETURNED TO THE ARPT & MADE A SINGLE ENG LANDING WITHOUT FURTHER INCIDENT. AN INVESTIGATION REVEALED THAT A 1ST STAGE TURBINE BLADE HAD FAILED IN THE LEFT ENG & WAS INJESTED IN THE REMAINDER OF THE TURBINE.

Probable Cause:

Accident investigation: