Aviation Accident Summaries

Aviation Accident Summary DCA94MA022

HIBBING, MN, USA

Aircraft #1

N334PX

JETSTREAM BA-3100

Analysis

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.

Factual Information

See section 1.1, History of the Flight, in NTSB Aircraft Accident Report "Express II Airlines, Inc.,/Northwest Airlink Flight 5719, Jetstream BA-3100, N334PX, Hibbing, Minnesota, December 1, 1993." (AAR-94/05)

Probable Cause and Findings

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)

 

Source: NTSB Aviation Accident Database

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