History of the Flight
On 22 November 2012, a Boeing 737-300 aircraft, registered PK-YVZ, operated by PT. Metro Batavia (Batavia Air) as flight Y6-206, was scheduled from Supadio Airport (WIOO/PNK) in Pontianak, Kalimantan, to Soekarno Hatta International Airport (WIII/CGK) in Jakarta. The flight was the third of three planned sectors that day. On board were two pilots, four flight attendants, and 112 passengers. The Captain served as Pilot Flying (PF) and the First Officer as Pilot Monitoring (PM).
At 11:04 UTC (18:04 WIB), the aircraft taxied to the line-up position on Runway 15. The initial takeoff roll was normal until just before lift-off, when the flight crew heard a "bang" sound, followed by aircraft vibration and a rightward swing. The Captain continued the takeoff. After selecting the landing gear handle to the up position, the crew noticed that the left main landing gear red warning light remained illuminated. The Captain instructed the First Officer to recycle the landing gear by moving the handle down and back up, but the light did not extinguish.
A flight attendant called the cockpit via interphone to report the bang and vibration. The Captain asked the flight attendant to summon an engineer who was travelling as a passenger. The engineer entered the cockpit, and the Captain described the abnormal indication. The engineer visually checked the left main landing gear through a cabin window and observed that the gear appeared normally positioned, though slightly more light than usual entered the wheel well area.
The Captain contacted Supadio Air Traffic Control (ATC) for information about what had occurred during the taxi and takeoff. ATC reported that the aircraft had struck a deer, based on evidence found by an airport safety officer: deer meat and a head were discovered near taxiway "D" of Runway 15-33.
The flight crew assessed the situation and decided to continue the flight to Jakarta. The Captain informed Soekarno Hatta ATC and Batavia Flight Operations about the deer strike and requested assistance for the landing approach, given the landing gear indication.
During descent and approach to Jakarta, ATC offered assistance, but the Captain determined that all conditions remained under control and declined. At 12:15 UTC, the aircraft landed normally on Runway 25L at Soekarno Hatta Airport. Deceleration was normal using thrust reversers, automatic speed brakes, and manual auto-brakes due to an antiskid problem. As the aircraft rolled down the runway, it experienced heavy vibration and deviated left and right of the centerline. After coming to a full stop at the end of Runway 25L, firefighting assistance was available. The engineer disembarked and conducted a visual inspection, reporting no visible damage.
The crew planned to disembark passengers as soon as possible and requested passenger stairs and buses. After 35 minutes without these, the pilots decided to tow the aircraft to the terminal using a pushback tractor, with passengers still on board. At approximately 12:50 UTC, a tractor towed the aircraft to parking stand C-13, with the engineer walking on the left side and a firefighting vehicle following. The aircraft shut down, and all passengers disembarked normally.
Injuries to Persons
All occupants were uninjured.
Damage to Aircraft
The aircraft sustained minor damage.
Other Damage
No other damage was reported.
Personnel Information
The Pilot in Command held an Air Transport Pilot License and had accumulated significant flight hours. The First Officer held a Commercial Pilot License. Detailed experience totals were recorded in the investigation report.
Aircraft Information
The aircraft was a Boeing 737-300, registration PK-YVZ. It was equipped with two engines and a retractable tricycle landing gear. The left main landing gear exhibited a red warning light after takeoff.
Meteorological Information
Meteorological conditions at the time were not detailed in the preliminary report.
Aids to Navigation
No issues with navigation aids were reported.
Communications
Communications between the flight crew and ATC were routine until the crew reported the abnormal condition.
Aerodrome Information
Supadio Airport (PNK) has Runway 15-33. The deer strike occurred on or near taxiway "D" during the takeoff roll on Runway 15.
Flight Recorders
Both the Flight Data Recorder (FDR) and Cockpit Voice Recorder (CVR) were recovered and sent for analysis. The report notes their presence but does not state findings.
Wreckage and Impact Information
No wreckage was present; the aircraft remained intact. The deer strike resulted in minor damage.
Medical and Pathological Information
No medical or pathological findings were reported.
Fire
There was no fire.
Survival Aspects
All occupants survived and disembarked normally.
Tests and Research
Further examinations of the landing gear system and damage were planned.
Organisational and Management Information
The operator was PT. Metro Batavia (Batavia Air), holding an Air Operator Certificate. The airport operator was PT. Angkasa Pura II, responsible for Supadio Airport.
Additional Information
The investigation continued to gather further data.
Analysis
The preliminary report did not provide analysis; it only presented factual information.
Conclusion
No conclusion was stated in the preliminary report.
Recommendations
Recommendations were directed to PT. Metro Batavia regarding procedures and to PT. Angkasa Pura II regarding wildlife hazard management at Supadio Airport.