Benalla | Bureau of Aircraft Accidents Archives

At 0906 Eastern Standard Time on 28 July 2004, a Piper Aircraft Corporation PA31T Cheyenne aircraft, registered VH-TNP, with one pilot and five passengers, departed Bankstown, New South Wales on a private, instrument flight rules (IFR) flight to Benalla, Victoria. Instrument meteorological conditions at the destination necessitated an instrument approach and the pilot reported commencing a Global Positioning System (GPS) non-precision approach (NPA) to Benalla. When the pilot had not reported landing at Benalla as expected, a search for the aircraft was commenced. Late that afternoon the crew of a search helicopter located the burning wreckage on the eastern slope of a tree covered ridge, approximately 34 km southeast of Benalla. All occupants were fatally injured and the aircraft was destroyed by impact forces and a post-impact fire.

Probable cause:

Significant factors:
1. The pilot was not aware that the aircraft had diverged from the intended track.
2. The route flown did not pass over any ground-based navigation aids.
3. The sector controller did not advise the pilot of the divergence from the cleared track.
4. The sector controller twice cancelled the route adherence monitoring alerts without confirming the pilot’s tracking intentions.
5. Cloud precluded the pilot from detecting, by external visual cues, that the aircraft was not flying the intended track.
6. The pilot commenced the approach at an incorrect location.
7. The aircraft’s radio altimeter did not provide the pilot with an adequate defence to avoid collision with terrain.
8. The aircraft was not fitted with a terrain awareness warning system (TAWS).

Final Report:

Crash of a Piper PA-31-310 Navajo C in Benalla

Date & Time: Jul 16, 1986 at 1818 LT

Type of aircraft:

Piper PA-31-310 Navajo

Operator:

Registration:

VH-UCK

Flight Phase:

Takeoff (climb)

Flight Type:

Private

Survivors:

Yes

Site:

Airport (less than 10 km from airport)

Schedule:

Benalla – Bankstown

MSN:

31-7712029

YOM:

1977

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

At the time of the attempted take-off, the night was dark, with overcast cloud conditions and light rain falling. Wind conditions were light and variable. The pilot reported that initial acceleration was normal, and the aircraft became airborne at about 95 knots. A positive rate of climb was established and the landing gear was selected up. The pilot subsequently advised that the speed then decayed to 90 knots. At this time there was nothing unusual in the engine noise and the controls felt normal. Shortly afterwards the propellers struck the ground 116 metres beyond the end of the runway. The aircraft then struck an embankment and passed through a fence before coming to rest 247 metres from the initial ground strike. All four occupants escaped with minor injuries and the aircraft was destroyed.

Probable cause:

Although wind conditions were light and variable when the engines were started, shortly after the accident the wind was moderate from the west/south-west. A detailed analysis conducted by the Bureau of Meteorology indicated that while the pilot was preparing for take-off, a cold front with winds in excess of 20 knots had probably passed over the aerodrome. As the pilot had conducted the take-off on runway 08, there was probably a substantial tailwind component. Conditions were also assessed as suitable for the development of microbursts, but the lack of recording instruments in the area prevented confirmation that this type of phenomenon had in fact occurred. The pilot had been deprived of the opportunity to observe changing wind conditions at the aerodrome. The wind direction indicator adjacent to the threshold of runway 08 was not lit, and the illuminated wind direction indicator was not visible from the point where the aircraft was lined up for take-off.

Final Report:

Crash of a De Havilland DH.60G Gipsy Moth in Malvern

Date & Time: Jun 9, 1937 at 1840 LT