Accident description
Last updated: 25 July 2014
Status:Preliminary - official
Date:Thursday 11 February 2010
Time:11:50
Type:Silhouette image of generic AT43 model; specific model in this crash may look slightly different
ATR-42-300
Operator:Trigana Air Service
Registration: PK-YRP
C/n / msn: 050
First flight: 1987-05-22 (22 years 9 months)
Total airframe hrs:34414
Cycles:42107
Engines: 2 Pratt & Whitney Canada PW121
Crew:Fatalities: 0 / Occupants: 6
Passengers:Fatalities: 0 / Occupants: 46
Total:Fatalities: 0 / Occupants: 52
Airplane damage: Substantial
Location:33 km (20.6 mls) NE of Balikpapan-Sepingan Airport (BPN) (   Indonesia) show on map
Phase: Landing (LDG)
Nature:Domestic Scheduled Passenger
Departure airport:Tanjung Redep/Berau-Kalimaru Airport (BEJ/WALK), Indonesia
Destination airport:Samarinda Airport (SRI/WALS), Indonesia
Flightnumber: 162
Narrative:
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.


Classification:
Forced landing outside airport

Sources:
» Kementerian Perhubungan

Official accident investigation report
investigating agency: National Transportation Safety Committee (NTSC) - Indonesia
report status: PRELIM.
report number: KNKT.10.02.04.04
report released:21-APR-2010
duration of investigation:69 days (2.3 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.10.02.04.04)

Photos

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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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Tanjung Redep/Berau-Kalimaru Airport to Samarinda Airport as the crow flies is 294 km (184 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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