Accident Cessna 208B Grand Caravan N454SF,
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Date:Tuesday 4 February 2020
Type:Silhouette image of generic C208 model; specific model in this crash may look slightly different    
Cessna 208B Grand Caravan
Owner/operator:Grant Aviation
Registration: N454SF
MSN: 208B0797
Year of manufacture:1999
Total airframe hrs:20344 hours
Engine model:Pratt & Whitney Canada PT6A-114A
Fatalities:Fatalities: 0 / Occupants: 8
Aircraft damage: Substantial, repaired
Location:Hooper Bay Airport, AK (HPB) -   United States of America
Phase: Take off
Nature:Passenger - Scheduled
Departure airport:Hooper Bay Airport, AK (HPB/PAHP)
Destination airport:Bethel Airport, AK (BET/PABE)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
A Cessna 208B Grand Caravan airplane, N454SF, sustained substantial damage after overrunning the end of the runway during takeoff, at the Hooper Bay Airport (HPB), Alaska, USA. Of the 8 occupants onboard, the commercial pilot and six adult passengers, along with one infant passenger, were not injured.
Day instrument meteorological conditions prevailed at the time of the accident, and an instrument flight plan was filed. The flight originated from HPB, about 15:58, and was destined for Bethel, Alaska (BET).

According to the captain, the weather conditions the day of the accident consisted of snow, low visibility, and flat light. The original flight departure time had been delayed about 3 hours due to weather. The scheduled route of flight was from Bethel (BET), to Scammon Bay (SCM), to HPB, to Chevak (VAK), returning to BET with various passengers and cargo pick-ups and drop-offs along the route. Prior to departure from BET he received runway reports from his dispatcher that all destination airport runways were ready. He also obtained weather at all three destinations. He then did a risk analysis and gathered more weather before deeming the flight conditions good to dispatch the flight.
While enroute to HPB he gathered weather for VAK and determined that the VAK portion of the flight would be canceled due to deteriorating weather. Once in HPB he landed without incident on the snow covered runway. He then called Grant dispatch in BET and informed that he would take all the passengers going to BET since he had canceled his flight to VAK; he loaded 7 passengers total and their bags. During the time on the ground, while waiting for passengers, a twin-engine King Air airplane landed and departed the runway with no incident.

The pilot then back taxied for a runway 13 departure at HPB. He stated that flat light conditions prevailed, and it was difficult to see down the runway or have any depth perception. He initiated the takeoff with 20 degrees of flap selected and noticed no issues during the initial takeoff roll. He then noticed the airspeed was not increasing fast enough, witnessed the end of the runway approaching, and decided he could not abort the takeoff in time. Committed to the takeoff the airplane became airborne and the stall warning horn activated as the airplane cleared the departure end of the runway. The pilot attempted to get the airplane into ground effect, but the airplane settled, and the main landing gear encountered the snow covered terrain. Subsequently, the airplane's speed decreased, the nose wheel descended and encountered the snow, and the airplane came to rest upright about 150 ft from the end of the runway. All crew and passengers evacuated the airplane, and nobody was injured.
The pilot added that the snow on the runway during departure was about 3-5 inches of wet heavy snow.

Probable Cause: The pilot’s decision to depart from a contaminated runway, and his failure to make a timely decision to abort the takeoff when the airplane was not accelerating as expected. Contributing to the accident was the pilot’s decision to depart in limited visibility conditions, which likely affected his ability to determine the available runway distance remaining during the takeoff.

Accident investigation:
Investigating agency: NTSB
Report number: ANC20LA020
Status: Investigation completed
Duration: 2 years 1 month
Download report: Final report



History of this aircraft

Other occurrences involving this aircraft
24 February 2002 N454SF Grant Aviation, Inc. 0 Tununak, Alaska sub
15 January 2008 N454SF Grant Aviation Inc. 0 Bethel, Alaska sub


Revision history:


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