Accident Bell 222A N5013H, Thursday 17 October 1985

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Date:	Thursday 17 October 1985
Time:	09:15 LT
Type:	Bell 222A
Owner/operator:	Petroleum Helicopters Inc
Registration:	N5013H
MSN:	47010
Total airframe hrs:	2894 hours
Engine model:	Lycoming LTS 101-650C2
Fatalities:	Fatalities: 0 / Occupants: 5
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Charenton, LA - United States of America
Phase:	En route
Nature:	Executive
Departure airport:	Lafayette, LA (KPHI)
Destination airport:	Morgan City, LA (7R3)
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
THE HELICOPTER HAD JUST COMPLETED A PHASE TWO CHECK, TWENTY MINUTES INTO THE FLIGHT THE OCCUPANTS HEARD A LOUD NOISE AND A SEVERE ONE-TO-ONE VIBRATION ENSUED. A SUCCESSFUL EMERGENCY LANDING WAS PERFORMED. EXAMINATION REVEALED THAT ONE SWASH PLATE DRIVE LINK HAD DISCONNECTED. THE MECHANIC STATED HE HAD FORGOTTEN TO TORQUE AND SAFETY A RETAINING NUT.

Probable Cause:

Accident investigation: