Accident description
Last updated: 22 August 2014
Status:Preliminary - official
Date:Tuesday 2 November 2010
Time:11:18
Type:Silhouette image of generic B734 model; specific model in this crash may look slightly different
Boeing 737-4Y0
Operator:Lion Air
Registration: PK-LIQ
C/n / msn: 24911/2033
First flight: 1991-04-08 (19 years 7 months)
Total airframe hrs:49107
Cycles:28889
Engines: 2 CFMI CFM56-3C1
Crew:Fatalities: 0 / Occupants: 6
Passengers:Fatalities: 0 / Occupants: 169
Total:Fatalities: 0 / Occupants: 175
Airplane damage: Substantial
Location:Pontianak-Supadio Airport (PNK) (   Indonesia) show on map
Phase: Landing (LDG)
Nature:Domestic Scheduled Passenger
Departure airport:Jakarta-Soekarno-Hatta International Airport (CGK/WIII), Indonesia
Destination airport:Pontianak-Supadio Airport (PNK/WIOO), Indonesia
Flightnumber: 712
Narrative:
The Boeing 737-400 aircraft, registered PK-LIQ, was being operated by Lion Air on a passenger schedule flight with flight number JT712. This flight was the first flight for the crew and was scheduled for departure at 09.30 LT.
The aircraft pushed back at 09.50 LT. During taxi out to the runway, the yaw damper light illuminated. The pilot checked to the Quick Reference Handbook (QRH) and switched off and back to on. The yaw damper light extinguished. The yaw damper light then illuminated for the second time. The pilot asked the engineer to come to cockpit to observe the problem.
The aircraft departed Soekarno Hatta Airport, Jakarta at 10.12 LT for Supadio Airport, Pontianak. Pilot in Command was the pilot flying (PF) and the copilot was the pilot monitoring (PM). The flight to Pontianak was reported normal.
Prior to descend, the pilot flying gave an approach briefing. There was an additional briefing item that the pilot had experiences that in this specific aircraft sometimes thrust reverser hard to operate and speed brake fails to auto deploy. The PF asked the PM to check the speed brake auto deployment after landing.
The aircraft was instructed to make an ILS approach to runway 15. The weather was reported slight rain. During initial approach the pilot used auto pilot and initial configuration was set with flaps 5 and speed 180 knots. After captured the localiser at 1300 feet, the PF asked for landing gear, down flaps 15 and speed reduced to 160 knots. He aimed to set the flaps landing configuration as the glide slope captured.
When the glide slope was captured, the auto pilot was failed to follow the glide and still maintain at 1300 feet. While the aircraft was on one dot above the glide slope, the PF switched off the auto pilot and auto throttle, to fly manually to capture the glide slope.
The PF then asked for flaps 40 and landing checklist. As the flaps lever has been selected to 40, the flaps indicator indicated to 30 positions. The PF asked for landing speed in case the flaps could be moved further than 30. After completing the landing checklist, PM then reselected the flaps. At approximately 600 feet, flaps 40 were successfully selected.
The aircraft touched down past the touchdown point. After touch down, the PF tried to select the thrust reverser, but it felt that the thrust reverser was hard to operate and the speed brake did not auto-deploy. No deceleration was felt by the crew. The PF then applied manual brakes, and selected speed brakes to be deployed manually. The reversers then deployed. During the landing roll, a loud bang was heard by
passengers, the flight attendants and some other people in the airport.
The aircraft ran out of runway and stopped at approximately 70 meters from the runway or 10 meters past the end of stop-way. The PIC then commanded for passenger evacuation to the flight attendants. All passengers were evacuated through all available exits.
No one injured in this accident. The aircraft has major damage to its engines, the nose landing gear and bally area. There was no other damage reported.

Weather about the time of the accident (04:18 UTC) was:
WIOO 020400Z 26004KT 6000 RA FEW010CB BKN008 24/24 Q1010 TEMPO FM0300 AND 0430 -RA=
[Wind 260 degrees at 4 knots; 6000 m visibility in rain; few clouds with cumulonimbus at 1,000 ft; broken clouds 800 ft; Temperature24░C; Dew point 24░C; QNH 1010 hPa)
WIOO 020500Z 27009KT 7000 FEW010CB BKN008 25/24 Q1009 TEMPO AT 0500=


Classification:
Runway excursion

Sources:
» Ministry of Transport, Indonesia


Follow-up / safety actions

NTSC issued 1 Safety Recommendation

Show all AD's and Safety Recommendations

Photos

photo of Boeing 737-4Y0 PK-LIQ
photo of Boeing 737-4Y0 PK-LIQ
photo of Boeing 737-4Y0 PK-LIQ
photo of Boeing 737-4Y0 PK-LIQ
Flight Data Recorder of LionAir Flight 712
photo of Boeing 737-4Y0 PK-LIQ
Add your photo of this accident or aircraft
 

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 Jakarta-Soekarno-Hatta International Airport to Pontianak-Supadio Airport as the crow flies is 728 km (455 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkĺs 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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