Serious incident Grumman G-159C Gulfstream I N114GA, Tuesday 18 May 1982

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Date:	Tuesday 18 May 1982
Time:	20:22 LT
Type:	Grumman G-159C Gulfstream I
Owner/operator:	U.s. Aviation, Inc./air U.s.,
Registration:	N114GA
MSN:	027
Total airframe hrs:	8259 hours
Engine model:	ROLLS ROYCE DART 529-8Z
Fatalities:	Fatalities: 0 / Occupants: 21
Other fatalities:	0
Aircraft damage:	Minor
Category:	Serious incident
Location:	Gillette, WY - United States of America
Phase:	Landing
Nature:	Unknown
Departure airport:	Denver, CO (KDEN)
Destination airport:	Atlanta, GA (KATL)
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
DURING ARRIVAL, A THUNDERSTORM WAS LOCATED ABOUT 6 MI SOUTHEAST OF THE AIRPORT AND ANOTHER WAS ABOUT 8 TO 10 MI NORTHWEST. REPORTEDLY, THE WIND WAS VARIABLE FROM 090 TO 180 DEG AT 10, GUSTING 25 KTS. WHILE LANDING ON A 75 FT WIDE RUNWAY, THE AIRCRAFT BEGAN TO VEER LEFT. NOSE WHEEL STEERING, BRAKES AND RUDDER WERE APPLIED, BUT NOT SUFFICIENTLY (IN TIME AND AMOUNT) TO PREVENT THE LEFT MAIN GEAR FROM GOING OFF THE RELATIVELY NARROW RUNWAY. THE LEFT GEAR ENCOUNTERED MUDDY TERRAIN NEXT TO THE RUNWAY, AND SHORTLY THEREAFTER, THE AIRCRAFT CROSSED A MID-FIELD TAXIWAY. AT THAT TIME, THE LEFT MAIN GEAR COLLAPSED.

Probable Cause:

Accident investigation: