Partial power loss - VH-­ZMK, Darwin Aerodrome, Northern Territory, on 25 July 2008

AO-2008-052

Summary

On 25 July 2008 at 1033 Central Standard Time a Piper PA-31-350 (Chieftain) aircraft, registered VH-ZMK was being operated on a scheduled passenger flight from Darwin to Bathurst Island, Northern Territory (NT). Moments after take-off, the right engine began to surge and shortly afterwards, the left engine also began to surge. The pilot declared an emergency and returned to the airfield, landing short of the runway.

The investigation was unable to reconcile the pilot's report that he had selected the inboard tanks before take-off on the incident flight with the evidence of the fuel remaining in the inboard tanks afterwards. The engine surging and power loss could be explained by fuel starvation resulting from selection of the outboard tanks that contained minimal fuel.

Occurrence summary

Investigation number AO-2008-052
Occurrence date 25/07/2008
Location Darwin aerodrome
State Northern Territory
Report release date 14/10/2010
Report status Final
Investigation level Short
Investigation type Occurrence Investigation
Investigation status Completed
Mode of transport Aviation
Aviation occurrence category Engine failure or malfunction
Occurrence class Serious Incident
Highest injury level None

Aircraft details

Manufacturer Piper Aircraft Corp
Model PA-31
Registration VH-ZMK
Serial number 31-8152142
Sector Piston
Operation type Air Transport Low Capacity
Departure point Darwin NT
Damage Minor