(During the later investigation, the NiCd battery was found to have been in poor condition due to inadequate maintenance procedures.) First Officer Gunawan attempted to transmit a Mayday call, but was unable to. They then tried but failed to start the auxiliary power unit (APU), at which time total electrical power loss occurred. The crew tried unsuccessfully to restart the engines two or three times. Both engines were set at their flight-idle power setting before flameout occurred.

About 90 seconds later, as the aircraft was descending through 19,000 ft (5,800 m), both CFM International CFM56 engines experienced a flameout, which resulted in the loss of all generated electrical power.

They later entered a thunderstorm containing heavy rain and hail. They attempted to fly between two intense weather cells visible on their radar. : 4–5 Passengers Nationality Īs the Boeing 737-300 aircraft was on approach to its destination, the pilots were confronted with substantial thunderstorm activity visible ahead and on their onboard weather radar. First Officer Gunawan had 7,137 flight hours. Captain Abdul Rozaq had logged 14,020 flight hours including 5,086 hours on the Boeing 737. On this flight, it was flown by Captain Abdul Rozaq (44), and First Officer Harry Gunawan (46). It was the first 737 flown by Garuda Indonesia. The aircraft, a Boeing 737-3Q8, registration PK-GWA, was manufactured in 1988 and delivered in 1989. On January 16, 2002, the flight encountered severe thunderstorm activity during approach to its destination, suffered flameout in both engines, and ditched in a shallow river, resulting in one fatality and several injuries. Garuda Indonesia Flight 421 was a scheduled domestic flight operated by Indonesian flag carrier Garuda Indonesia travelling about 625 km (388 mi 337 nmi) from Ampenan to Yogyakarta. A Garuda Indonesia Boeing 737-3Q8, similar to the accident aircraft.įlameout of both engines in heavy rain/hail resulting in water landingīengawan Solo River (near Solo, Central Java, Indonesia)ħ☄0′03″S 110☄6′48″E / 7.66750°S 110.78000☎ / -7.66750 110.78000Īdisucipto International Airport, Yogyakarta

Upper deck boeing 777 garuda