What happened
On 30 March 2023, a Boeing 737-80 and registered PK-GMC, operated by PT Garuda Indonesia, was completing a scheduled flight from Bangkok to Jakarta. The flight, GIA867, carried 76 passengers and a crew of eight. The flight proceeded normally until the approach phase at Soekarno-Hatta International Airport, where air traffic controllers vectored the aircraft to maintain separation from other traffic.
During the final approach, at an altitude of approximately 700 feet, the autopilot and autothrottle systems disengaged, requiring the crew to transition to manual flight. As the aircraft descended to 300 feet, the pilot in command noted the N1 engine power was at 53% and subsequently increased the throttle to 57%.
As the aircraft crossed the runway threshold, the crew observed that the Enhanced Ground Proximity Warning System (EGPWS) altitude callouts were occurring at an accelerated rate. During the flare, the pilot in command assisted in holding the control column. The aircraft subsequently experienced a bouncing touchdown. While the pilot managed to land the aircraft safely, the second impact was noted to be significantly harder than the first.
The investigation
The KNKT investigation focused on the sequence of events leading to the impact and the resulting damage. Post-flight inspections by an engineer revealed that the aircraft had sustained minor structural damage. Specifically, scratches were identified on the lower surface of the aft fuselage skin, and the tailskid damper was found to be deflected. Additionally, a 13-meter scratch mark was discovered on the runway surface near the centerline.
Findings
- The aircraft maintained a valid Certificate of Airworthiness and Certificate of Registration.
- The flight crew held all necessary valid licenses and medical certificates.
- There were no reported technical malfunctions or system abnormalities prior to the event.
- The aircraft experienced bouncing during the touchdown phase.
- The primary damage consisted of scratches to the aft fuselage skin and a deflected tailskid damper.