Accident
Last updated: 20 April 2014
Status:Schlussbericht
Datum:Montag 31 August 1987
Zeit:15:36
Flugzeugtyp:Silhouette image of generic B732 model; specific model in this crash may look slightly different
Boeing 737-2P5
Fluggesellschaft:Thai Airways
Kennzeichen: HS-TBC
Werknummer: 22267/685
Baujahr: 1980-07-25 (7 years 1 months)
Betriebsstunden:16963
Anzahl Zyklen der Zelle:20864
Triebwerk: 2 Pratt & Whitney JT8D-15
Besatzung:Todesopfer: 9 / Insassen: 9
Fluggäste:Todesopfer: 74 / Insassen: 74
Gesamt:Todesopfer: 83 / Insassen: 83
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:15 km (9.4 Meilen) vom Land entfernt von Phuket International Airport (HKT) (   Thailand) show on map
Flugphase: Annäherung (APR)
Betriebsart:Inländischer planmäßiger Passagierflug
Flug von:Hat Yai Airport (HDY/VTSS), Thailand
Flug nach:Phuket International Airport (HKT/VTSP), Thailand
Flugnummer: 365
Unfallbericht:
Thai 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: "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."

Informationsquelle:
» Aviation Letter 250
» ICAO Circular 259-AN/153(97-118)


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photo of Boeing 737-2P5 HS-TBC
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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Hat Yai Airport to Phuket International Airport as the crow flies is 262 km (164 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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