Philippine Airlines Flight 137

Philippine Airlines Flight 137 was a scheduled passenger flight from Ninoy Aquino International Airport in Manila to Bacolod City Domestic Airport in Bacolod. The aircraft overran the runway on landing which resulted in the deaths of three people on the ground whereas none out of the 124 passengers and 6 crew were killed.^[1]

Philippine Airlines Flight 137

A Philippine Airlines Airbus A320-214, similar to the one involved
Accident
Date	March 22, 1998 (1998-03-22)
Summary	Runway overrun caused by pilot error
Site	Bacolod City Domestic Airport 10°39′01″N 122°56′11″E
Total fatalities	3
Total injuries	69
Aircraft
Aircraft type	Airbus A320-214
Operator	Philippine Airlines
IATA flight No.	PR137
ICAO flight No.	PAL137
Call sign	PHILIPPINE 137
Registration	RP-C3222
Flight origin	Ninoy Aquino International Airport
Destination	Bacolod City Domestic Airport
Occupants	130
Passengers	124[1]
Crew	6[1]
Fatalities	0
Injuries	44[2]
Survivors	130
Ground casualties
Ground fatalities	3[1]
Ground injuries	25[2]

Accident

Flight 137 took off from Manila at 6:40 p.m. and landed at Bacolod City Domestic Airport at 7:37 p.m. after receiving permission from air traffic controllers to land on Runway 04.^[1]

This approach was made with the autothrottle in speed mode. The throttle lever of the first engine on the left side of the fuselage was located in the position of ascending thrust. When the aircraft landed, the throttle of the second engine was placed in the thrust reverse position, but the throttle of the first engine was not returned to the idle position and remained in the ascending position. The co-pilot said that the spoiler and thrust reverser did not work and did not slow down. The spoiler did not start because one engine was in the thrust reverse position and the other was in the ascending thrust position. The second engine was set to reverse thrust, so the autothrottle was released. Since the throttle lever of the first engine was in the ascending thrust position, the thrust began to increase when the autothrottle was released. Due to the asymmetrical thrust, the aircraft began to deviate to the right, so the pilot tried to keep the aircraft on the runway using rudders, but at this speed, the rudder and nose wheel steering had no effect, and the aircraft went through the fence around the perimeter of the airport. When operated from the rudder pedals, the nose wheel steering angle is limited to 6 degrees, and hand-steering is disabled at speeds above 70 knots (130 km/h; 81 mph). The fire that broke out after the accident was extinguished by the timely response of the ATO Accident Fire Rescue Team with the cooperation of the Bacolod City Fire Brigade. All passengers and crew were unharmed, but three people in the area were killed.^[1]

The aircraft, an Airbus A320-214, tail number RP-C3222, was destroyed. It had been in service for barely three months prior to the accident.^[3][4]

Cause

A selection by the pilot of the wrong mode on the onboard flight computers by the pilot prevented the power from being reduced to idle, which, in turn inhibited the use of the thrust reverser and spoilers. The affected engine was shut down, and the brakes were applied, but the aircraft was unable to stop before the end of the runway.^[2]

See also

• Aviation portal
• Philippines portal
• 1990s portal

• TAM Airlines Flight 3054 – Another A320 that crashed nine years later under almost identical circumstances, with 199 fatalities.
• Korean Air Flight 631 – another runway excursion incident in the Philippines which happened 24 years later.
• Runway excursion