Accident Mitsubishi MU-2B-40 N181RS, Friday 18 March 1983

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Date:	Friday 18 March 1983
Time:	22:35 LT
Type:	Mitsubishi MU-2B-40
Owner/operator:	Newcomb Securites Co.
Registration:	N181RS
MSN:	426SA
Year of manufacture:	1980
Total airframe hrs:	655 hours
Engine model:	AIRESEARCH TPE-331-10
Fatalities:	Fatalities: 0 / Occupants: 6
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Fort Collins, CO - United States of America
Phase:	Landing
Nature:	Executive
Departure airport:	Grand Island, NE (KGRI)
Destination airport:	Ft. Collins, CO (KFNL)
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
THE PLT STATED THAT THE ACFT DRIFTED LEFT AFTER TOUCHDOWN. PROPS WERE BROUGHT TO THE BETA RANGE, & CORRECTION WAS ADDED WITH RIGHT SPOILER & RIGHT RUDDER. THERE WAS AN IMMEDIATE DROPPING OR TURNING TO THE LEFT & THE ACFT HIT A SNOWRIDGE. BOTH ENGS WERE FEATHERED & THE ACFT SLID ALONG THE SNOWRIDGE. THE LEFT WING TIP WAS STRIKING THE GROUND ALONG WITH THE LEFT SIDE OF THE FUSELAGE. THE LEFT MAIN LANDING GEAR DRAG STRUT WAS SHEARED FLUSH WITH THE BARREL CAUSING THE GEAR TO COLLAPSE. METALLURGICAL TESTS REVEALED THAT THE ROD HAD BEEN OVERLOADED & HAD NOT BEEN WEAKENED BY CORROSION, CRACKS OR FATIGUE PRIOR TO THE ACCIDENT.

Probable Cause:

Accident investigation: