Détails:
The aircraft departed Bankstown Airport, NSW (BWU) at about 06:40 and proceeded as planned to Inverell Airport, NSW (IVR) with several en route stops. At Inverell the pilot rested until his departure that afternoon for the return journey. At 17:23 the pilot departed Armidale (ARM) for Tamworth (TMW). The planned time for the flight was 17 minutes. The flight plan indicated the flight would be conducted in accordance with IFR procedures. The pilot elected to remain at 4,500 ft in visual meteorological conditions because of conflicting traffic at higher altitudes. The published IFR lowest safe altitude for the route was 5,400 ft.
At about 17:32 the pilot requested a descent clearance. He was cleared to make a visual approach with a clearance limit of 5 NM DME from Tamworth, and was requested to report at 8 DME from Tamworth. The pilot acknowledged the instructions and reported leaving 4,500 ft on descent.
The aircraft was 8.2 NM from Tamworth when it impacted trees at approximately 2,685 ft AMSL. It was descending at an angle of approximately 3.5 degrees, and was banked about 17.5 degrees to the left at impact. The aircraft maintained a straight path after initial impact but had rolled to a bank angle of 25 degrees left by the time the left wing struck a second tree 35 m further on. It then impacted the ground left wing low and inverted, before bouncing into a rock face 200 m from initial impact. The main fuselage wreckage caught fire and the cabin area was destroyed.
There was low cloud and rain in the area at the time of the accident.
SIGNIFICANT FACTORS
1. The pilot was making a visual approach in weather conditions unsuitable for such an approach.
2. The pilot had not flown this route before.
3. The aircraft was flown below the lowest safe altitude in conditions of poor visibility.
accident date: 09-03-1994
type: Swearingen SA226-AT Merlin IV
registration: VH-SWP
| Statuts: | Accident investigation report completed and information captured |
| Date: | mercredi 9 mars 1994 |
| Heure: | 17:34 |
| Type/Sous-type: |  Swearingen SA226-AT Merlin IV |
| Compagnie: | Jetcraft |
| Immatriculation: | VH-SWP |
| Numéro de série: | AT-033 |
| Année de Fabrication: | 1975 |
| Equipage: | victimes: 1 / à bord: 1 |
| Passagers: | victimes: 0 / à bord: 0 |
| Total: | victimes: 1 / à bord: 1 |
| Dégats de l'appareil: | Perte Totale |
| Conséquences: | Written off (damaged beyond repair) |
| Lieu de l'accident: | 15 km (9.4 milles) NE of Tamworth Airport, NSW (TMW) ( Australie)
|
| Phase de vol: | En approche (APR) |
| Nature: | Cargo |
| Aéroport de départ: | Armidale Airport, NSW (ARM/YARM), Australie |
| Tamworth Airport, NSW (TMW/YSTW), Australie |
The aircraft departed Bankstown Airport, NSW (BWU) at about 06:40 and proceeded as planned to Inverell Airport, NSW (IVR) with several en route stops. At Inverell the pilot rested until his departure that afternoon for the return journey. At 17:23 the pilot departed Armidale (ARM) for Tamworth (TMW). The planned time for the flight was 17 minutes. The flight plan indicated the flight would be conducted in accordance with IFR procedures. The pilot elected to remain at 4,500 ft in visual meteorological conditions because of conflicting traffic at higher altitudes. The published IFR lowest safe altitude for the route was 5,400 ft.
At about 17:32 the pilot requested a descent clearance. He was cleared to make a visual approach with a clearance limit of 5 NM DME from Tamworth, and was requested to report at 8 DME from Tamworth. The pilot acknowledged the instructions and reported leaving 4,500 ft on descent.
The aircraft was 8.2 NM from Tamworth when it impacted trees at approximately 2,685 ft AMSL. It was descending at an angle of approximately 3.5 degrees, and was banked about 17.5 degrees to the left at impact. The aircraft maintained a straight path after initial impact but had rolled to a bank angle of 25 degrees left by the time the left wing struck a second tree 35 m further on. It then impacted the ground left wing low and inverted, before bouncing into a rock face 200 m from initial impact. The main fuselage wreckage caught fire and the cabin area was destroyed.
There was low cloud and rain in the area at the time of the accident.
Probable Cause:
SIGNIFICANT FACTORS
1. The pilot was making a visual approach in weather conditions unsuitable for such an approach.
2. The pilot had not flown this route before.
3. The aircraft was flown below the lowest safe altitude in conditions of poor visibility.
Accident investigation:
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Photos
accident date: 09-03-1994
type: Swearingen SA226-AT Merlin IV
registration: VH-SWP
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 Armidale Airport, NSW et Tamworth Airport, NSW est de 96 km (60 miles).
Accident location: Approximate; accuracy within a few kilometers.
La distance entre Armidale Airport, NSW et Tamworth Airport, NSW est de 96 km (60 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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