NTSB Identification: DCA94MA022.
The docket is stored on NTSB microfiche number 52863.
Scheduled 14 CFR
Accident occurred Wednesday, December 01, 1993 in HIBBING, MN
Probable Cause Approval Date: 12/27/1994
Aircraft: JETSTREAM BA-3100, registration: N334PX
Injuries: 18 Fatal.

NTSB investigators traveled in support of this investigation and used data obtained from various sources to prepare this aircraft accident report.

WHILE ON A LOCALIZER BACK COURSE APPROACH THE AIRPLANE COLLIDED WITH TREES AND THE TERRAIN APRX 3 MI FROM THE RUNWAY THRESHOLD. THE CAPTAIN DELAYED THE START OF THE DESCENT THAT SUBSEQUENTLY REQUIRED AN EXCESSIVE DESCENT RATE TO REACH THE FAF AND MDH. THE CAPTAIN'S ACTIONS LED TO DISTRACTIONS DURING CRITICAL PHASES OF THE APPROACH. THE FLIGHTCREW LOST ALTITUDE AWARENESS AND ALLOWED THE AIRPLANE TO DESCEND BELOW MANDATORY LEVEL OFF POINTS. THE CAPTAIN'S RECORD RAISED QUESTIONS ABOUT HIS AIRMANSHIP AND BEHAVIOR THAT SUGGESTED A LACK OF CREW COORDINATION DURING FLIGHT OPERATIONS, INCLUDING INTIMIDATION OF FIRST OFFICERS. COMPANY MANAGEMENT DID NOT ADDRESS THESE MATTERS ADEQUATELY. THE AIRLINE'S FLIGHT OPERATIONS MANAGEMENT FAILED TO IMPLEMENT PROVISIONS TO ADEQUATELY OVERSEE THE TRAINING OF THEIR FLIGHTCREWS AND THE OPERATION OF THEIR AIRCRAFT. FAA GUIDANCE TO THEIR INSPECTORS CONCERNING IMPLEMENTATION OF OPS BULLETINS IS INADEQUATE AND HAS FAILED TO TRANSMIT VALUABLE SAFETY INFORMATION AS INTENDED TO AIRLINES.

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

THE CAPTAIN'S ACTIONS THAT LED TO A BREAKDOWN IN CREW COORDINATION AND THE LOSS OF ALTITUDE AWARENESS BY THE FLIGHTCREW DURING AN UNSTABILIZED APPROACH IN NIGHT INSTRUMENT METEOROLOGICAL CONDITIONS. CONTRIBUTING TO THE ACCIDENT WERE: THE FAILURE OF THE COMPANY MANAGEMENT TO ADEQUATELY ADDRESS THE PREVIOUSLY IDENTIFIED DEFICIENCIES IN AIRMANSHIP AND CREW RESOURCE MANAGEMENT OF THE CAPTAIN; THE FAILURE OF THE COMPANY TO IDENTIFY AND CORRECT A WIDESPREAD, UNAPPROVED PRACTICE DURING INSTRUMENT APPROACH PROCEDURES; AND THE FEDERAL AVIATION ADMINISTRATION'S INADEQUATE SURVEILLANCE AND OVERSIGHT OF THE AIR CARRIER. (NTSB REPORT AAR-94/05)

Full narrative available

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