Report: MV-22 Osprey crash caused by dust from rotor wash

The Marine Corps investigation into the crash of an MV-22 Osprey tilt-rotor aircraft May 17 in Hawaii determined that it was caused by dust stirred up by the rotor wash.

Osprey_dust_USAF_photo
File photo of MV-22 Osprey. USAF photo..

After making multiple attempts to land in brown-out conditions, the buildup of debris on the turbine blades and vanes led to a compressor stall in the left engine, which decreased lift and resulted in the hard landing and fire.

The report found that pilot performance and an improper site survey of the landing zone led to the accident, resulting in the deaths of two and injuries to 20 on board.

The potential for the Osprey to deliver water or personnel to fight wildfires was evaluated by the Marine Corps in tests with a 900-gallon water bucket. They recommended that the aircraft not exceed 90 knots with a bucket and 50 knots when dropping water.

MV-22 Osprey with bucket
MV-22 Osprey with bucket. DOD photo.

The Osprey is a tilt-rotor aircraft capable of vertical or short takeoff and landing. When airborne, it can cruise at over 300 mph, can carry 24 to 32 troops, or 15,000 pounds of external cargo.

However, there are some issues that would stand in the way of the Osprey fighting fires, such as the very powerful rotor wash that has injured people nearby, the extreme heat that comes out of the engine exhaust which has started wildland fires and damaged flight decks on ships, and the high cost of $83,256 dollars an hour.

We have written a number of articles at Fire Aviation and at Wildfire Today about the MV-22 Osprey and its suitability for fighting fires.

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One thought on “Report: MV-22 Osprey crash caused by dust from rotor wash”

  1. Better to find out now…Just like the first “Osprey Down”. Many vulnerable phases of flight. Helo’s and other VTOL’s are not always “first to fight” like their Marine warriors. The “Heavies” (Jumbo Jets) need more acceptance on the early barrage.

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