What happened
On July 23, 2008, a Boeing 737, registration PK-GZN, experienced a failure of the main landing gear (MLG) at Syamsudin Noor Airport in Banjarmasin, South Kalimantan, Indonesia. There were no injuries resulting from the event.
The investigation
Technical examination of the landing gear assembly revealed a crack in one of the brake mounting holes that had propagated inward. This crack led to the fracturing of the inner cylinder, which subsequently caused the axle to collapse. At the time of the incident, the landing gear assembly had been in service for 9 years, 7 months, and 8 days, with a total of 15,218 cycles.