NTSB Identification: DEN89IA060.
The docket is stored on NTSB microfiche number 38592.
Scheduled 14 CFR operation of ROCKY MOUNTAIN AIRWAYS (D.B.A. CONTINENTAL EXPRESS )
Incident occurred Wednesday, January 11, 1989 in GUNNISON, CO
Probable Cause Approval Date: 08/26/1992
Aircraft: DE HAVILLAND DHC-7-102, registration: N926RM
Injuries: 51 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.

ROCKY MOUNTAIN AIRWAYS FLT 2276 WAS ON A SCHEDULED FLT FROM DENVER, CO TO GUNNISON, CO. DURING TOUCHDOWN AT GUNNISON, THE RIGHT LANDING GEAR PARTIALLY COLLAPSED. THE CAPT WAS ABLE TO MAINTAIN DIRECTIONAL CONTROL DURING THE LANDING ROLL. HE TAXIED THE ACFT OFF THE RUNWAY ONTO THE ACFT PARKING APRON WHERE HE SHUT THE ENGINES DOWN AND THE PAX WERE DEPLANNED. SUBSEQUENT INVESTIGATION REVEALED THAT THE LOCK STRUT IN THE LANDING GEAR ASSEMBLY HAD FAILED DUE TO FATIGUE. A SERVICE BULLETIN REGARDING THE INSPECTION AND REPLACEMENT OF THIS PART HAD NOT BEEN COMPLIED WITH.

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

THE FATIGUE FAILURE OF THE DOWN LOCK MECHANISM RESULTING FROM THE NON-COMPLIANCE WITH A SERVICE BULLETIN BY COMPANY MAINTENANCE PERSONNEL.

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