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Last updated: 5 October 2015
Statuts:Enquête Préliminaire
Date:jeudi 11 février 2010
Type/Sous-type:Silhouette image of generic AT43 model; specific model in this crash may look slightly different
Compagnie:Trigana Air Service
Immatriculation: PK-YRP
Numéro de série: 050
Année de Fabrication: 1987-05-22 (22 years 9 months)
Heures de vol:34414
Moteurs: 2 Pratt & Whitney Canada PW121
Equipage:victimes: 0 / à bord: 6
Passagers:victimes: 0 / à bord: 46
Total:victimes: 0 / à bord: 52
Dégats de l'appareil: Substantiels
Lieu de l'accident:33 km (20.6 milles) NE of Balikpapan-Sepingan Airport (BPN) (   Indonésie)
Phase de vol: A l'atterrissage (LDG)
Nature:Transport de Passagers Nat.
Aéroport de départ:Tanjung Redep/Berau-Kalimaru Airport (BEJ/WALK), Indonésie
Aéroport de destination:Samarinda Airport (SRI/WALS), Indonésie
Numéro de vol: 162
An ATR-42-300 turboprop plane, registered PK-YRP, was damaged in a forced landing in a rice field near Balikpapan-Sepingan Airport (BPN), Indonesia.
All six crew members and 46 passengers survived the accident.
The domestic passenger flight TGN162 departed Tanjung Redep/Berau-Kalimaru Airport (BEJ) at 10:30 and climbed to Flight Level (FL) 140. Balikpapan approach cleared the crew direct to Samarinda Airport (SRI). The enroute part of the flight was uneventful. On approach to Samarinda, the crew was cleared to track direct to left downwind for runway 04. The controller informed them that the wind was 060 degrees at 12 knots. During the final approach for runway 04, the left ECU (Engine Control Unit) light illuminated followed by low oil pressure and torque indications. The captain decided to go around, divert to Balikpapan-Sepingan Airport (BPN) which was 92 km (50 NM) to the South. He carried out the engine shut-down procedure. They commenced the climb to 4000 ft with the left engine inoperative. Approximately 16 Nm from Balikpapan Airport, while climbing through 3,800 feet, the right ECU light illuminated, immediately followed by low oil pressure and low torque indications. The right engine then failed. The crew broadcast a MAYDAY to Balikpapan Approach and decided to conduct a forced landing into a clear field in the Samboja area, about 16 Nm from the Balikpapan Airport.

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Official accident investigation report
investigating agency: National Transportation Safety Committee (NTSC) - Indonesia
report status: Preliminary
report number: KNKT.
report released:21 April 2010
duration of investigation: 69 days (2 months)
download report: Aircraft Accident Investigation Report PT. Trigana Air Service PK–YRP ATR 42-320 Samboja Area, Km 41 Balikpapan East Kalimantan Republic of Indonesia 11 February 2010 (NTSC KNKT.


photo of ATR-42-300 PK-YRP
photo of ATR-42-300 PK-YRP
photo of ATR-42-300 PK-YRP
photo of ATR-42-300 PK-YRP
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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 Tanjung Redep/Berau-Kalimaru Airport et Samarinda Airport est de 294 km (184 miles).

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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