NTSB Identification: DEN82IA103
Scheduled 14 CFR Part 121: Air Carrier operation of U.S. AVIATION, INC.
Incident occurred Tuesday, June 08, 1982 in GILLETTE, WY
Probable Cause Approval Date: 06/08/1983
Aircraft: GRUMMAN G-159C, registration: N159AN
Injuries: 29 Uninjured.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

THE ACFT WAS ON A SCHEDULED, DOMESTIC, PAX FLT. THE COPLT WAS THE COMPANY'S CHIEF PLT AND WAS FLYNG THE ACFT FROM THE LEFT SEAT. HE WAS UNDER SUPERVISION OF THE PILOT-IN-COMMAND (PIC) WHO WAS IN THE RT SEAT. DRG ARRIVAL, THE CREW ELECTED TO MAKE A LOCALIZER-ONLY APCH TO RWY 33 WHICH WAS WET. JUST PRIOR TO LNDG, THE WIND WAS REPORTED FROM 280 DEG AT 15 KNTS. (ACCORDING TO AN OFFICIAL WX OBS AT 1736 MDT, THE WIND WAS FROM 290 DEG AT 17, GSTG 25 KTS.) REPORTEDLY, THE LNDG APCH & TCHDWN WERE NORMAL. AT APRX 90 KTS, GROUND FIND FINE PITCH (GFP) WAS SELECTED & THE ACFT VEERED TO THE LEFT. NOSE WHL STEERING & RUDDER WERE RPRTD AS NIL. THE PIC ASSUMED CONTROL, BUT THE ACFT WENT OFF THE LEFT SIDE OF THE RWY BFR HE WAS ABLE TO STOP THE SWERVE AND PARALLEL THE RWY. THERE WAS NO DNG OR INJURY. DURING AN INVESTIGATION, THE LEFT ENGINE WAS FOUND TO IDLE AT 8000 RPM, THE RGT ENGINE IDLED AT 9000 RPM. THE RECOMMENDED IDLE SPEED WAS 6500 TO 7500 RPM.

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

DIRECTIONAL CONTROL..NOT MAINTAINED..COPILOT/SECOND PILOT

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

SUPERVISION..INADEQUATE..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..CROSSWIND


Contributing Factors

WEATHER CONDITION..GUSTS


Contributing Factors

AIRPORT FACILITIES,RUNWAY/LANDING AREA CONDITION..WET

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