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NTSB Report
June 2, 1990 · Boeing 737-2X6C · N670MA
Unalakleet, AK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 2, 1990
Injury Outcomes
4 injuries (1 serious injury, 3 minor injuries)
Location
Unalakleet, AK
Aircraft
Boeing 737-2X6C
Tail Number
N670MA
Operator
Markair
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
DCA90MA030
ON JUNE 2, 1990, AT 09:37 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 0828 AT ANCHORAGE INTERNATIONAL AIRPORT, ANCHORAGE, ALASKA. INSTRUMENT METEOROLOGICAL CONDITIONS EXISTED AT THE TIME, AND THE FLIGHT WAS ON AN 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 AIRCRAFT WAS DESTROYED. THE FLIGHT WAS OPERATED UNDER FAR PART 121. (SEE NTSB/AAR-91/02 FOR FURTHER INFORMATION)
NTSB Probable Cause
DEFICIENCIES IN FLIGHTCREW COORDINATION, THEIR FAILURE TO ADEQUATELY PREPARE FOR AND PROPERLY EXECUTE THE UNK LOC RWY 14 NONPRECISION APPROACH AND THEIR SUBSEQUENT PREMATURE DESCENT.
Full Narrative
ON JUNE 2, 1990, AT 09:37 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 0828 AT ANCHORAGE INTERNATIONAL AIRPORT, ANCHORAGE, ALASKA. INSTRUMENT METEOROLOGICAL CONDITIONS EXISTED AT THE TIME, AND THE FLIGHT WAS ON AN 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 AIRCRAFT WAS DESTROYED. THE FLIGHT WAS OPERATED UNDER FAR PART 121. (SEE NTSB/AAR-91/02 FOR FURTHER INFORMATION)
Flight
Event TypeAccident
Event Time09:37 AKDT
Nearest AirportUnakaleet (0nm N)
Runway14
Runway Length6010 ft
Runway Width170 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBoeing 737-2X6C
Tail NumberN670MA
Aircraft CategoryAir
DamageDestroyed
OperatorMarkair
Operating RulePart 121
Engines2
Engine TypeTurbofan
Engine DetailsP&W · JT8D-17A · Turbofan · 16000
Seats75
People & Injuries
Injury Summary4 injuries (1 serious injury, 3 minor injuries)
Fatal0
Serious1
Minor3
Uninjured0
Total4
Crew 1Age 39 · First Class
Conditions
ConditionsIMC
LightDaylight
WindCalm
Visibility1 sm
CeilingOvercast 500 ft
Temperature / Dew Point48 / 0 C
Altimeter29.00 inHg
Observation Time11:45
Weather SourceWFAC