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Last updated: 5 December 2020
Statuts:Enquête Officielle
Date:dimanche 2 octobre 2016
Type/Sous-type:Silhouette image of generic C208 model; specific model in this crash may look slightly different
Cessna 208B Grand Caravan
Operated by:Hageland Aviation Services
On behalf of:Ravn Connect
Immatriculation: N208SD
Numéro de série: 208B0491
Année de Fabrication: 1995
Heures de vol:20562
Moteurs: 1 Pratt & Whitney Canada PT6A-114A
Equipage:victimes: 2 / à bord: 2
Passagers:victimes: 1 / à bord: 1
Total:victimes: 3 / à bord: 3
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:19 km (11.9 milles) NW of Togiak, AK (   Etats-Unis d'Amérique)
Élévation des lieux de l'accident: 700 m (2297 feet) amsl
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Quinhagak Airport, AK (KWN/PAQH), Etats-Unis d'Amérique
Aéroport de destination:Togiak Village Airport, AK (TOG/PATG), Etats-Unis d'Amérique
Numéro de vol:7H3153
A Hageland Aviation Services Cessna 208 Caravan operating as Ravn Connect Flight 3153 from Quinhagak with two crew and one passenger onboard impacted mountainous terrain 12 statute miles northwest of its intended destination of Togiak. All three occupants died in the crash.
Flight 3153 had originated in Bethel, Alaska; made scheduled stops in Togiak and Quinhagak; and was scheduled to return to Togiak before returning to Bethel, the intended final destination for the day. The aircraft departed Quinhagak at 11:33.
An area believed to be the initial impact point was discovered on the northwest side of a mountain ridgeline at the 2300-foot level. The initial impact point was located north of and about 200 feet below the 2500-foot mountain summit and contained fragmented portions of fuselage and two severed propeller blades. From the initial impact point, the wreckage path extended southeast to the main wreckage, which was located downslope on the southeast side of the ridgeline at the 1,550-foot level. The outboard portion of the left wing had separated and was located about 200 feet further downslope below the main wreckage site. A postcrash fire incinerated a large portion of the fuselage and right wing.

Probable Cause:

The National Transportation Safety Board determines that the probable cause of this accident was the flight crew’s decision to continue the visual flight rules flight into deteriorating visibility and their failure to perform an immediate escape maneuver after entry into instrument meteorological conditions, which resulted in controlled flight into terrain (CFIT). Contributing to the accident were
(1) Hageland’s allowance of routine use of the terrain inhibit switch for inhibiting the terrain awareness and warning system alerts and inadequate guidance for uninhibiting the alerts, which reduced the margin of safety, particularly in deteriorating visibility;
(2) Hageland’s inadequate crew resource management (CRM) training;
(3) the Federal Aviation Administration’s failure to ensure that Hageland’s approved CRM training contained all the required elements of Title 14 Code of Federal Regulations 135.330; and
(4) Hageland’s CFIT-avoidance ground training, which was not tailored to the company’s operations and did not address current CFIT-avoidance technologies.

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 7 months
Accident number: NTSB-AAR-18/02
Download report: Final report

» Ravn statement

METAR Weather report:
21:09 UTC / 13:09 local time:
PATG 022109Z AUTO 00000KT 7SM -RA BKN015 OVC021 07/06 A2990 RMK AO2 P0001

21:40 UTC / 13:40 local time:
PATG 022140Z AUTO 00000KT 10SM FEW021 OVC042 08/07 A2990 RMK AO2 RAE13 P0001

Opérations de secours

NTSB issued 8 Safety Recommendations

Show all...


photo of Cessna-208B-Grand-Caravan-N208SD
accident date: 02-10-2016
type: Cessna 208B Grand Caravan
registration: N208SD
photo of Cessna-208B-Grand-Caravan-N208SD
accident date: 02-10-2016
type: Cessna 208B Grand Caravan
registration: N208SD

Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Quinhagak Airport, AK et Togiak Village Airport, AK est de 112 km (70 miles).
Accident location: Approximate; accuracy within a few kilometers.

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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