Date: May 11th, 1990
Operator: Philippine Air Lines
Where: Manila (Philippines)
Report No.: Not Available
Report Date: -
This is not an accident investigation report.
A powerful explosion in the center fuel tank pushed the cabin floor
violently upwards, while the aircraft was being pushed back for a flight to
Iloilo. The wingtanks ruptured, causing the Boeing to burst into flames.
The center fuel tank was empty at the time, except for some fuel vapours.
The vapours ignited probably due to damaged wiring, because no bomb,
incendiary device or detonator has been found.
Source: IATA 1990 total losses list