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Safety Recommendation Details

Safety Recommendation A-91-018
Details
Synopsis: ON JUNE 2, 1990, AT 0937 ALASKAN DAYLIGHT TIME, MARKAIR, INC., FLIGHT 3087, A BOEING 737-2X6C, REGISTERED IN THE US AS N670MA, CRASHED ABOUT 7.5 MILES SHORT OF RUNWAY 14, UNALAKLEET, ALASKA, WHILE EXECUTING A LOCALIZER APPROACH TO THAT RUNWAY. THE FLIGHT ORIGINATED AT ANCHORAGE INTERNA TIONAL AIRPORT, ANCHORAGE, ALASKA AT 0828. INSTRUMENT METEOROLOGICAL CONDITIONS EXISTED AT THE TIME AND THE FLIGHT WAS ON AN INSTRUMENT FLIGHT RULES (IFR) FLIGHT PLAN. THE CAPTAIN, THE FIRST OFFICER, AND A FLIGHT ATTENDANT SUSTAINED MINOR INJURIES. ANOTHER FLIGHT ATTENDANT SUSTAINED SERIOUS INJURIES. THERE WERE NO PASSENGERS ON BOARD, AND THE AIRPLANE WAS DESTROYED.
Recommendation: THE NTSB RECOMMENDS THAT THE MARKAIR, INC.: REVISE THE MARKAIR FLIGHT CHECKLISTS AND TRAINING PROGRAM TO ENSURE THAT BLEED SWITCH DEACTIVATION FOR GRAVEL RUNWAY LANDING ACCOMPLISHED AT SUFFICIENT ALTITUDE SO AS NOT TO BE A DISTRACTION DURING CRITICAL PHASES OF FLIGHT.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Aviation
Location: UNALAKLEET, AK, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: DCA90MA030
Accident Reports: Markair, Inc., Boeing 737-2X6C, N670MA Controlled Flight into Terrain
Report #: AAR-91-02
Accident Date: 6/2/1990
Issue Date: 2/13/1991
Date Closed: 2/10/1994
Addressee(s) and Addressee Status: Markair, Inc. (Closed - Acceptable Action)
Keyword(s): Flightcrew, Training and Education

Safety Recommendation History
From: NTSB
To: Markair, Inc.
Date: 2/10/1994
Response: THE BOARD IS PLEASED TO NOTE THAT THIS IS NOW BEING ACCOMPLISHED AND CLASSIFIES RECOMMENDATION A-91-18 "CLOSED-ACCEPTABLE ACTION."

From: Markair, Inc.
To: NTSB
Date: 10/18/1993
Response: THE MARKAIR FLIGHT CHECKLISTS AND TRAINING PROGRAM HAVE BEEN REVISED TO ENSURE THAT BLEED RECONFIGURATION FOR GRAVEL RUNWAY OPERATIONS ARE CONDUCTED AT A TIME AND ALTITUDE THAT WILL NOT DETRACT FROM OTHER FLIGHT AIRCRAFT OPERATIONS DURING A CRITICAL PHASE OF FLIGHT. THE BLEED CONFIGURATION IS NOW ACCOMPLISHED WITH APU STARTUP AT LEAST 5000' ABOVE THE DESTINATION AIRPORT.