CESSNA 172N near Tamuning — 2010-04-30

Probable cause

The failure of the pilot to maintain clearance with the airplane’s propeller while hand-propping.

NTSB narrative

Unable to get the engine started, the pilot elected to exit the airplane and turn the propeller by hand. The pilot turned off all electrical power and took the keys out of the ignition after turning the magnetos to off prior to exiting the cockpit. As he turned the propeller with both hands his head went beneath the propeller, which struck his head and resulted in a serious injury to the pilot.

Analysis

Primary failure mode

Human factors

First missed decision gate

Pilot should not have attempted to rotate the propeller by hand.

NTSB coding

• Miscellaneous/other · Standing-engine(s) not oper

Evidence available

• 2 docket documents

Docket documents2

• Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1form
• Safety Pilot Statementinterview

Related mishaps

• BOEING 757 223

  2015-10-21 · Dallas, TX

• BEECH J35

  2010-01-26 · Russellville, AR

• CESSNA 150F

  2008-12-28 · Palenstine, TX