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Factual Information
25
Aircraft Accident Report


1.9 Communications

No communications problems were reported between the crew of flight 801 and any of the FAA or contract ATC facilities. (See sections 1.7.2 and 1.10.1 for more information.)

1.10 Airport Information

The A.B. Won Pat Guam International Airport is located about 3 nm northeast of Agana on the west-central coast of Guam at an elevation of 297 feet msl. The airport is leased to the Guam International Airport Authority by the U.S. Navy, and the associated navigational facilities are owned and operated by the FAA. The airport has two parallel runways oriented northeast/southwest: runway 6R/24L, which is 8,001 feet long and 150 feet wide, and runway 6L/24R, which is 10,015 feet long and 150 feet wide.

Runway 6L is equipped with high-intensity runway edge lights and a mediumintensity approach lighting system with runway alignment indicator lights.[1] The runway was not equipped with runway end identifier lights, centerline lights, or touchdown zone lights. Runway 6L is also equipped with a four-box visual approach slope indicator (VASI) calibrated for a 3° visual glidepath angle. The touchdown elevation of runway 6L is 256 feet but rises to 297 feet at the departure end of the runway.

Guam International Airport was certified by the FAA as an Index D aircraft rescue and firefighting (ARFF) facility under 14 CFR Part 139. In accordance with this index, the airport is required to maintain a minimum of three ARFF vehicles capable of carrying a total quantity of at least 4,000 gallons of water.

1.10.1 Air Traffic Control Services for Guam International Airport

1.10.1.1 Combined Center/Radar Approach Control

The Guam CERAP, located at Andersen Air Force Base (AFB),[2] provides both TRACON and en route ATC services. To do so, the CERAP is equipped with two


  1. The tower controller said that, at the time of the accident, the lights for runway 6L were on step 2, and the medium intensity approach lights were on step 1 (the lowest of three approach light intensity settings). These settings were not changed until after the accident when Ryan flight 789 requested that the lights on runway 24R be changed from step 2 to 3. The controller documented the runway light settings about an hour after the Ryan flight had landed and said that no one had reset the runway lighting panel during that period.
  2. Andersen AFB is located at the northeastern end of the island. It has two runways that are oriented in the same manner as those at Guam International Airport.