Accident Piper PA-18-150 N82166, Tuesday 11 January 1994

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Date:	Tuesday 11 January 1994
Time:	17:35 LT
Type:	Piper PA-18-150
Owner/operator:	Minuteman Aviation, Inc.
Registration:	N82166
MSN:	18-7809137
Year of manufacture:	1978
Total airframe hrs:	3511 hours
Engine model:	Lycoming O-320-A2B
Fatalities:	Fatalities: 0 / Occupants: 2
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Missoula, MT - United States of America
Phase:	Landing
Nature:	Private
Departure airport:
Destination airport:
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
DURING THE LANDING ROLL THE REAR SEAT PILOT/PASSENGER ALLOWED THE TAIL WHEELED AIRCRAFT TO DIVERGE FROM THE CENTERLINE. THE PILOT IN COMMAND TOOK CONTROL OF THE AIRCRAFT IN AN EFFORT TO PREVENT A GROUND LOOP, BUT FAILED TO PREVENT THE AIRCRAFT FROM IMPACTING A FRANGIBLE TAXIWAY DIRECTION SIGN LOCATED AT THE NORTHWEST CORNER OF THE INTERSECTION OF TAXIWAY 'D' AND RUNWAY 25.

Probable Cause: THE PILOT/PASSENGER'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL AND THE PILOT IN COMMAND'S FAILURE TO PROPERLY SUPERVISE THE LANDING.

Accident investigation: