Incident Overview

Date: Thursday 11 February 2010
Aircraft Type: ATR 42-300
Owner/operator: Trigana Air Service
Registration Number: PK-YRP
Location: 33 km NE of Balikpapan-Sepingan Airport (BPN) – ÿ Indonesia
Phase of Flight: Landing
Status: Substantial, written off
Casualties: Fatalities: 0 / Occupants: 52
Component Affected: Left ECU light, engine, and right engine.Left ECU light, engine, and right engine.
Investigating Agency: NTSCNTSC
Category: Accident
On October 26, 2023, an ATR-42-300 aircraft, registered PK-YRP, experienced a forced landing near Balikpapan-Sepingan Airport (BPN) in Indonesia. All six crew members and 46 passengers survived the accident. The flight originated from Tanjung Redep/Berau-Kalimaru Airport (BEJ) at 10:30 and was initially expected to fly to Flight Level (FL) 140. The flight then proceeded to Balikpapan approach, where the controller instructed the crew to track a direct route to left downwind for runway 04. During the final approach, the crew detected an issue with the left ECU light, followed by low oil pressure and torque indications. The captain initiated a forced landing, diverting to Balikpapan-Sepingan Airport (BPN) approximately 92 km (50 NM) south. The flight crew executed an engine shutdown procedure and commenced a climb to 4000 feet 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. The incident was likely caused by a lack of fuel management, potentially resulting in a fuel quantity indication issue.On October 26, 2023, an ATR-42-300 aircraft, registered PK-YRP, experienced a forced landing near Balikpapan-Sepingan Airport (BPN) in Indonesia. All six crew members and 46 passengers survived the accident. The flight originated from Tanjung Redep/Berau-Kalimaru Airport (BEJ) at 10:30 and was initially expected to fly to Flight Level (FL) 140. The flight then proceeded to Balikpapan approach, where the controller instructed the crew to track a direct route to left downwind for runway 04. During the final approach, the crew detected an issue with the left ECU light, followed by low oil pressure and torque indications. The captain initiated a forced landing, diverting to Balikpapan-Sepingan Airport (BPN) approximately 92 km (50 NM) south. The flight crew executed an engine shutdown procedure and commenced a climb to 4000 feet 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. The incident was likely caused by a lack of fuel management, potentially resulting in a fuel quantity indication issue.

Description

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 and divert to Balikpapan-Sepingan Airport (BPN) which was 92 km (50 NM) to the South. The flight crew carried out the engine shut-down procedure and commenced a 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. CAUSES: “The both engine were lack of fuel before flame out, it was indicated the fuel management was out of control during flight that might be a misleading of fuel quantity indication. The proper analysis could not be carried out due to both FDR and CVR were un-operated.” [sic]

Primary Cause

Fuel management issues, potentially leading to a lack of fuel quantity indication, which could have resulted in a flame-out event.Fuel management issues, potentially leading to a lack of fuel quantity indication, which could have resulted in a flame-out event.

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