36 fatalities

1970-04-21: Avro 748 (PI-C1022) — Philippine Airlines - PAL — Cabanatuan, Philippines

Cabanatuan, PhilippinesFlight

On April 21, 1970, an Avro 748 (registration PI-C1022) operated by Philippine Airlines - PAL was involved in an aviation accident near Cabanatuan, Philippines in flight. 36 people were killed. Investigators recorded the probable cause as: An explosion occurred in the rear lavatory during flight, though the precise cause remains undetermined. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 1781236391Data APIEditorial standards

An aircraft crashed in a field near Cabanatuan after an explosion occurred while cruising at 10,500 feet, resulting in no survivors.

What happened

During the cruise phase of flight at an altitude of 10,500 feet, the aircraft experienced an onboard explosion. Following this event, the plane became uncontrollable and entered a steep dive. The descent ended when the aircraft struck a field situated in the vicinity of Cabanatuan.

There were 36 fatalities recorded as a result of the accident, with no survivors reported among the occupants.

Findings

Investigations into the incident concluded that an explosion took place within the rear lavatory while the aircraft was in flight. While the occurrence of the blast was confirmed, investigators were unable to determine the specific origin or trigger of the explosion.

Probable cause

An explosion occurred in the rear lavatory during flight, though the precise cause remains undetermined.