Statuts: | Information verified through authorities or other official sources. |
Date: | vendredi 11 mai 1990 |
Type/Sous-type: | Boeing 737-3Y0 |
Compagnie: | Philippine Air Lines |
Immatriculation: | EI-BZG |
Numéro de série: | 24466/1771 |
Année de Fabrication: | 1989-08-24 (9 months) |
Moteurs: | 2 CFMI CFM56-3B1 |
Equipage: | victimes: 0 / à bord: 6 |
Passagers: | victimes: 8 / à bord: 114 |
Total: | victimes: 8 / à bord: 120 |
Dégats de l'appareil: | Perte Totale |
Conséquences: | Written off (damaged beyond repair) |
Lieu de l'accident: | Manila-Ninoy Aquino International Airport (MNL) ( Philippines)
|
Phase de vol: | Tracté (PBT) |
Nature: | Transport de Passagers Nat. |
Aéroport de départ: | Manila-Ninoy Aquino International Airport (MNL/RPLL), Philippines |
Aéroport de destination: | Iloilo-Mandurriao Airport (ILO/RPVI), Philippines |
Numéro de vol: | 143 |
Détails:Ambient air temperatures were high - 95°F (35°C) - as the Boeing 737 was parked at Manila Airport. The air conditioning packs, located beneath the center wing fuel tank, had been running on the ground before pushback for approximately 30 to 45 minutes. The center wing fuel tank, which had not been filled since March 9, 1990, probably still contained some fuel vapors. Shortly after pushback a powerful explosion in the center fuel tank pushed the cabin floor violently upwards. The wing tanks ruptured, causing the Boeing to burst into flames. The vapors ignited probably due to damaged wiring, because no bomb, incendiary device or detonator has been found.
Sources:
» Investigation Report B737-300 / PR143, 11 May 1990 Manila, Philippines (preliminary findings)
» NTSB safety recommendations A-90-100/103
Opérations de secours
NTSB issued 4 Safety Recommendations
Issued: 01-AUG-1990 | To: FAA | A-90-100 |
ISSUE AN AIRWORTHINESS DIRECTIVE TO REQUIRE IMMEDIATE INSPECTION OR TESTING OF FLOAT SWITCH WIRING FROM THE FLOAT SWITCHES TO THE REFUELING PANEL FOR CHAFFED OR DAMAGED INSULATION MATERIAL ON BOEING 737-300, -400, AND -500 SERIES AIRPLANES. THE DIRECTIVE SHOULD STATE THAT SPECIAL EMPHASIS BE PLACED ON INSPECTING THE WIRE BUNDLE WHERE IT PASSES THROUGH THE WING PYLON VAPOR SEALS AND UNDER THE WIRE BUNDLE CLAMPS. (Closed - Unacceptable Action) |
Issued: 01-AUG-1990 | To: FAA | A-90-101 |
DEVELOP TESTING TECHNIQUES TO ENSURE THAT FLOAT SWITCHES MANUFACTURED BY REVERE AEROSPACE ARE FREE FROM DEFECT THAT COULD CAUSE AN EXPLOSION OR FIRE. AFTER TESTING TECHNIQUES ARE DEVELOPED, ISSUE AN AIRWORTHINESS DIRECTIVE TO REQUIRE TESTING OF REVERE AEROSPACE FLOAT SWITHCHES AND REPLACEMENT IF THEY ARE DEFECTIVE. (Closed - Unacceptable Action) |
Issued: 01-AUG-1990 | To: FAA | A-90-102 |
ISSUE AN AIRWORTHINESS DIRECTIVE APPLICABLE TO ALL 14 CFR PART 121 AIRPLANES TO REQUIRE, AT THE NEXT SCHEDULED MAJOR MAINTENANCE INSPECTION, AN INSPECTION OF THE WIRES IN WIRE BUNDLES IN THE WINGS WHERE ADDITIONAL WIRING HAS BEEN ADDED SINCE THE AIRPLANE WAS MANUFACTURED. THE INSPECTION SHOULD BE DIRECTED TO THE DETERMINATION OF INSULATION DAMAGE WHERE THE WIRE BUNDLE IS UNDER CLAMPS AND INSIDE VAPOR SEALS AND PRESSURE SEALS. (Closed - Unacceptable Action) |
Issued: 01-AUG-1990 | To: FAA | A-90-103 |
CONDUCT A DETAILED ENGINEERING DESIGN REVIEW AND TESTING OF THE FUEL PUMPS USED IN THE BOEING 737-300 SERIES AIRPLANES (P/N 10-62049-3) TO VERIFY THAT OVERHEATING AND INTERFERENCE BETWEEN THE ROTATING COMPONENTS OF THE PUMP AND ITS CASE WILL NOT CAUSE A FIRE HAZARD. TESTING SHOULD BE CONDUCTED IN JET-FUEL VAPOR AT FLASH POINT. (Closed - Acceptable Alternate Action) |
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Photos
accident date:
11-05-1990type: Boeing 737-3Y0
registration: EI-BZG
Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Manila-Ninoy Aquino International Airport et Iloilo-Mandurriao Airport est de 451 km (282 miles).
Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.