History of Flight
On 18 December 2021, a Boeing 737-200 aircraft, registration PK-JRW, operated by PT Jayawijaya Dirgantara, was conducting a non-schedule cargo flight from Sentani International Airport, Jayapura, Papua to Wamena Airport, Papua. Onboard were two pilots, one Flight Operation Officer, one engineer, and 12,556 kg of cargo. The aircraft was within weight and balance limits according to the weight and balance report.
The aircraft blocked off at 0820 local time (17 December 2021 2320 UTC). The Pilot in Command served as Pilot Flying, and the Second in Command as Pilot Monitoring.
At 0831 LT, after lining up on runway 30, the aircraft began the takeoff roll. At rotation speed, a loud bang was heard and heavy vibration occurred. The Pilot Monitoring observed the right engine instruments showing indications equal to idle power: LP compressor speed (N1) 30%, HP compressor speed (N2) 22%, and fluctuating Engine Gas Temperature.
The Pilot Monitoring reported the problem to Sentani Air Traffic Control and indicated an emergency. ATC acknowledged and provided guidance for return. The pilots climbed to 4,500 feet for holding, completed the Engine Severe Damage Non-Normal Checklist, and prepared to return. The aircraft landed safely at Sentani at 0903 LT.
Injuries to Persons
No one was injured in this occurrence.
Damage to Aircraft
Other than the right engine, no damage to the aircraft. The right engine was severely damaged. Borescope inspection revealed: all blades of compressor stages 1 to 5 severely damaged; stage 6 blades dented and bent; stages 7 to 13 blades bent, dented, and/or torn; combustion chamber and turbines undamaged.
Other Damage
No damage to property or environment.
Personnel Information
Pilot in Command: male, 45 years, Indonesian, ATPL issued 17-02-2010, type rated B737-100/200, instrument rating valid 30 April 2022, medical first class valid 26 January 2022 with limitation to wear corrective lens, last line check 07 June 2021, proficiency check 11 November 2021, total flying experience 13481:10 hours, on type 1402:30 hours.
The report includes further personnel data for the Second in Command, not detailed here.
Aircraft Information
Boeing 737-200, registration PK-JRW, operated by PT Jayawijaya Dirgantara. Engine details not specified beyond the severe damage to the right engine.
Additional Context
The aircraft was on a cargo service, and the investigation by the Komite Nasional Keselamatan Transportasi (KNKT) continues. No safety actions from the operator had been received at the time of this preliminary report, but safety recommendations were issued.