Philippine Airlines Flight 143
| Philippine Airlines Flight 143 | |
|---|---|
 An identical Boeing 737-300 |
|
| Accident summary | |
| Accident type | Tank explosion |
| place |
Manila Airport , Philippines
|
| date | May 11, 1990 |
| Fatalities | 8th |
| Survivors | 112 |
| Aircraft | |
| Aircraft type |
 Boeing 737-3Y0
|
| operator |
Philippine Airlines
|
| Mark |
 EI-BZG
|
| Departure airport |
Manila Airport , Philippines
|
| Destination airport |
Iloio Airport , Philippines
|
| Passengers | 114 |
| crew | 6th |
| Lists of aviation accidents | |
On May 11, 1990 burned on the 143 Philippine Airlines flight ( flight number : PR143 ) a Boeing 737-300 of the Philippine Airlines before taking off from Manila airport due to a tank explosion, while they for the launch was being prepared. 8 of the 120 people on board were killed.
plane
The Boeing 737-300 with the aircraft registration EI-BZG was newly delivered to the Irish leasing company Guinness Peat Aviation (GPA) in October 1989 and leased to Philippine Airlines . She was 9 months old at the time of the accident. The machine had the serial number 24466. It was the Boeing 737 produced in 1771 and assembled at the Boeing plant in Renton , Washington . The machine was equipped with two CFM International CFM56 engines.
Course of the accident
On 11 May 1990, the machine had for boarding long with the air conditioner at temperatures of 35 ° C around 45 minutes at the Manila Airport confessed. When all the passengers had boarded and a pushback was carried out, there were suddenly several explosions with a subsequent fire. An evacuation of the machine was initiated immediately. Of the 120 people on board, 112 were able to leave the burning machine on the emergency slides , eight passengers were killed.
root cause
The chairman of the Philippine Aviation Authority, Oscar Alejandro, said after the accident that the engines were not running at the time of the explosions.
Since no traces of a bomb or a detonator could be found, the flight accident investigators determined that the most likely cause of the accident was ignited kerosene fumes , which were caused by defective wiring and the excessive heating of the tanks by the air conditioning units located directly next to it . The machine had previously stood in the sun for around 45 minutes at 35 degrees Celsius with the air conditioning running. In addition, the Center Wing tank had not been filled for two months, which could have led to the presence of kerosene fumes in this tank. Since they found chafing areas in the wiring, the NTSB investigators recommended the FAA issue an airworthiness directive calling on aircraft owners to check fuel pumps , float switches and wiring . It was also recommended that a device be installed on the aircraft that fills the tank with nitrogen as soon as the fuel is consumed (inerting system) in order to displace the oxygen and thus prevent an explosive air-fuel mixture from forming . The FAA refused to publish such an instruction. Six years later, a Boeing 747 crashed on TWA Flight 800 under similar circumstances, killing 230 people.
See also
Individual evidence
- ↑ a b c d e f g h accident report B-737-300, EI-BZG Aviation Safety Network (English), accessed on February 27, 2019.
- ↑ a b Operating history EI-BZG Philippine Airlines Boeing 737-300 Planespotters.net (English), accessed on February 27, 2019.
- ↑ 737 accident reports (English), accessed on February 27, 2019.
Coordinates: 14 ° 30 ′ 31 ″ N , 121 ° 1 ′ 10 ″ E