Accident
Last updated: 23 April 2014
Statuts:Enquête Officielle
Date:samedi 19 novembre 1977
Heure:21:35
Type/Sous-type:Silhouette image of generic B722 model; specific model in this crash may look slightly different
Boeing 727-282
Compagnie:TAP Air Portugal
Immatriculation: CS-TBR
Numéro de série: 20972/1096
Année de Fabrication: 1975-01-07 (2 years 11 months)
Heures de vol:6154
Cycles:5204
Moteurs: 3 Pratt & Whitney JT8D-17
Equipage:victimes: 6 / à bord: 8
Passagers:victimes: 125 / à bord: 156
Total:victimes: 131 / à bord: 164
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Funchal Airport (FNC) (   Portugal) show on map
Phase de vol: A l'atterrissage (LDG)
Nature:Transport de Passagers Nat.
Aéroport de départ:Lisboa-Portela de Sacavém Airport (LIS/LPPT), Portugal
Aéroport de destination:Funchal Airport (FNC/LPFU), Portugal
Numéro de vol: 425
Détails:
TAP Flight 425 was a regular service from Brussels (BRU) to Funchal (FNC), Madeira with an en route stop at Lisbon (LIS). Weather conditions at Madeira were poor. It was raining and a 6/8 cumulus overcast at 1500 feet with a visibility of 3000m made for a challenging approach.
The first NDB approach to runway 24 was discontinued at the 'MAD' NDB because the crew hadn't established visual contact with the runway. Heavy rainshowers were reported, but the flight crew reported seeing the runway lights when over the 'MAD' NDB for the second time. The aircraft touched down 2000 feet past the threshold with just 3000 feet runway length remaining. Thrust reversers were deployed and spoilers extended, but the 727 aquaplaned slightly and could not be stopped on the runway. The Boeing overran and plunged over a steep bank. It struck a stone bridge, shearing off the right wing. It then crashed almost vertically on to a beach about 130 feet below the level of the airport, bursting in flames.


CAUSA PROVÁVEL:
"A Comissão de Inquérito determinou como causa provável do acidente a impossibilidade de desacelerar a aeronave até à paragem no comprimento da pista, devido, provavelmente, aos seguintes factores:
- Condições meteorológicas muito desfavoráveis no momento da aterragem;
- Existência possível de condições para hidroplanagem;
- Velocidade de aterragem de Vref + 19 nós;
- Aterragem comprida motivada por um longo "flare";
- Correcção direccional brusca após o toque na pista."



PROBABLE CAUSE: (translated from Portuguese:
The Commission of Inquiry established as a probable cause of the accident the impossibility to decelerate the aircraft and to stop in the length of the runway due to, probably, the following factors:
- Very bad weather conditions at the time of landing;
- Possible existence of conditions for hydroplaning;
- Landing at a speed of Vref + 19 knots;
- Landing long with a long "flare";
- Sudden directional correction after touch down on the runway.

Sources:
» Air Disasters / D.Gero
» Flight International 21.01.1978 (162)
» Flight International 26.11.1977 (1564)

Official accident investigation report
investigating agency: Direcção-Geral da Aviação Civil (DGAC) - Portugal
report status: Final
report number:
download report: Transportes Aéreos Portugueses Boeing 727-282 – CS-TBR Aeroporto de Santa Catarina Ilha da Madeira Portugal (DGAC Portugal )
cover

Photos

photo of Boeing 727-282 CS-TBR
Add your photo of this accident or aircraft
 

Plan
Ce plan montre l'aéroport de départ ainsi que la supposé destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Lisboa-Portela de Sacavém Airport et Funchal Airport est de 959 km (599 miles).

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