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Last updated: 17 September 2019
Statuts:Enquête Officielle
Date:lundi 31 août 1987
Heure:15:36
Type/Sous-type:Silhouette image of generic B732 model; specific model in this crash may look slightly different
Boeing 737-2P5
Compagnie:Thai Airways
Immatriculation: HS-TBC
Numéro de série: 22267/685
Année de Fabrication: 1980-07-25 (7 years 1 months)
Heures de vol:16963
Cycles:20864
Moteurs: 2 Pratt & Whitney JT8D-15
Equipage:victimes: 9 / à bord: 9
Passagers:victimes: 74 / à bord: 74
Total:victimes: 83 / à bord: 83
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:15 km (9.4 milles) E de Phuket International Airport (HKT) (   Thaïlande)
Phase de vol: En approche (APR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Hat Yai Airport (HDY/VTSS), Thaïlande
Aéroport de destination:Phuket International Airport (HKT/VTSP), Thaïlande
Numéro de vol: 365
Détails:
Thai Airways Flight 365 was approaching Phuket VOR/DME on radial 119 after a flight from Hat Yai. At the same time Dragon Air Flight 203 (a Boeing 737 registered VR-HYL, carrying 62 occupants) also approached Phuket VOR/DME on radial 090. At 08:34 UTC Dragonair 203 reported at 2500 feet with Thai 365 in sight in front of them. The Thai Boeing was flying at 3000 feet at the time, and was 13 miles from Phuket VOR/DME. Dragonair 203, first priority in approach sequence, then turned right at 12 DME and was going to turn inbound for finals for runway 27. The Thai crew surmised that the other crew were making a false position report to gain landing priority and reported hurriedly that they were at 8 DME inbound and requested visual approach, though they hadn't reached 8 DME yet. This forced Phuket Approach to give Thai 365 landing priority at 08:35.
The Dragonair crew (flying IFR) immediately warned that the Thai plane couldn't descend through their flight level. Concentrating on the conflicting traffic the speed decayed to 163 knots until the stick shaker activated. The Thai crew then applied power and raised the landing gear, but the aircraft entered a stall crashed into the sea, disintegrating on impact.

Probable Cause:

PROBABLE CAUSE: "The pilot slowed the aircraft and it stalled while the pilot prepared to be number one on landing as advised by Phuket approach control. It appears that he was worrying and not sure whether he could make number one landing because the pilot if number two aircraft in sequence gave warning that the number one aircraft ahead was above him and could not descend passing through his level. The pilot added power and raised the gear after stick shaker activated but didn't execute a recovery before hitting the sea."

Sources:
» ICAO Circular 259-AN/153(97-118)


Photos

photo of Boeing-737-2P5-HS-TBC
accident date: 31-08-1987
type: Boeing 737-2P5
registration: HS-TBC
 

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 Hat Yai Airport et Phuket International Airport est de 262 km (164 miles).
Accident location: Approximate; accuracy within a few kilometers.

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.
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