Total power loss - Robinson R44 Clipper II, VH-HFG, 95 km north-north-east of Hamilton Island Airport, Queensland, on 26 January 2011

AO-2011-008

Summary

On 26 January 2011, at about 1315 Eastern Standard Time, a Robinson Company R44 Clipper II helicopter, registered VH-HFG, departed the Knuckle Reef Helipad, Queensland, for a 20-minute charter flight. On board the helicopter, were the pilot and three passengers. While returning to the Helipad 15 minutes later, at about 950 ft above mean sea level, the helicopter experienced mechanical problems, including a sudden loss of cylinder head temperature indication and variations in the engine manifold pressure.

The helicopter was unable to maintain altitude and began to descend at 200 ft a minute. The pilot elected to conduct a precautionary water landing, about 3.5 NM (6.5 km) south of Knuckle Reef and 0.5 NM (0.9 km) east of Line Reef. The pilot inflated the emergency floats, commenced an auto rotation at 500 ft and landed on the sea in a 1.5 m swell. The pilot secured the helicopter and radioed his GPS coordinates to another helicopter, who relayed these to Hamilton Island air traffic control. The other helicopter then liaised with the passenger transfer boat from Knuckle Reef, which picked up the pilot and passengers from HFG.

The helicopter was unable to be recovered before rapidly drifting into the path of an oncoming cyclone. A subsequent search failed to locate the helicopter which is presumed to have sunk.

The pilot's training underpinned the successful precautionary autorotation water landing onto a 1.5 m swell, thereby preventing significant injuries to the occupants.

Occurrence summary

Investigation number AO-2011-008
Occurrence date 26/01/2011
Location 95 km NNE of Hamilton Island Airport
State Queensland
Report release date 12/09/2011
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 Robinson Helicopter Co
Model R44
Registration VH-HFG
Serial number 11794
Sector Helicopter
Operation type Charter
Departure point Knuckle Reef, Qld
Destination Knuckle Reef, Qld
Damage Destroyed