Narrative:The Airbus struck pole-mounted electrical transmission cables on Nimitz Hill during a localizer approach to runway 06L at Guam in IMC. The aircraft executed a missed approach and landed safely at Guam. After arriving back at Manila the aircraft was inspected and found to have minor damage to the fuselage and landing gear. On August 6, 1997 an accident happened on the same hill when a Korean Air Boeing 747-3B5 collided with terrain while on approaching runway 06L. The MSAW (minimum safe altitude warning) software which was not functioning properly in 1997 was working fine this time. But the CERAP controller, who was no longer in direct communication with PAL110, did not advise the Agana tower controller of the warning. The warning was displayed in the control tower as well, however, the display was logged as out of service because of damage from a typhoon that struck Guam nine days earlier, and its operation was not verified as reliable.
PROBABLE CAUSE: "The pilot's initiation of a premature descent that was both below the nominal glideslope and steeper than normal. Contributing to the incident was the air traffic controller's failure to respond to the MSAW warning and issue a safety alert as required by FAA order."
Follow-up / safety actions
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not
display the exact flight path.
Distance from Manila-Ninoy Aquino International Airport to Guam-A.B. Won Pat International Airport as the crow flies is 2552 km (1595 miles).