<< >> NASA ASRS Report 123636, September 1989

Pilot moving propeller of small aircraft. Engine started and aircraft moved forward. Propeller hit hangar, stopped engine.

Attributes
ACN	123636
Time
Date	198909
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : cho
State Reference	VA
Altitude	agl bound lower : 0 agl bound upper : 0
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	ground : preflight
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 16 flight time total : 156 flight time type : 144
ASRS Report	123636
Events
Anomaly	aircraft equipment problem : critical non adherence : far other anomaly
Independent Detector	other other : unspecified cockpit
Resolutory Action	none taken : insufficient time
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

Aircraft start-up, engine primed for start. All steps followed per check sheet. Propeller rotated 1 turn and stopped at 12 O'clock position. Starter would not engage propeller gear. After up to 10 tries, retarded throttle, shut off switch, decided to move propeller from 12 to 10 O'clock position to see if starter would engaged. Deplaned, moved to front of propeller and moved propeller 30 degrees or so. Events moved too fast to clearly state all facts, but engine fired and continued to run, moving toward me due to grade on tarmac. Somehow got around propeller to left wing strut to try to stop aircraft forward progress. Aircraft moved forward 30-40' and propeller struck a 'T'-hangar, stopping engine. Later found key can be removed from switch at any position. Removing key would not ensure switch was in off position. When finally able to get to cabin, pulled key straight out of switch by end of key ring. It was why I thought key was in the off position.

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Original NASA ASRS Text

Title: PLT MOVING PROPELLER OF SMA. ENGINE STARTED AND ACFT MOVED FORWARD. PROPELLER HIT HANGAR, STOPPED ENGINE.

Narrative: ACFT START-UP, ENG PRIMED FOR START. ALL STEPS FOLLOWED PER CHK SHEET. PROP ROTATED 1 TURN AND STOPPED AT 12 O'CLOCK POS. STARTER WOULD NOT ENGAGE PROP GEAR. AFTER UP TO 10 TRIES, RETARDED THROTTLE, SHUT OFF SWITCH, DECIDED TO MOVE PROP FROM 12 TO 10 O'CLOCK POS TO SEE IF STARTER WOULD ENGAGED. DEPLANED, MOVED TO FRONT OF PROP AND MOVED PROP 30 DEGS OR SO. EVENTS MOVED TOO FAST TO CLEARLY STATE ALL FACTS, BUT ENG FIRED AND CONTINUED TO RUN, MOVING TOWARD ME DUE TO GRADE ON TARMAC. SOMEHOW GOT AROUND PROP TO LEFT WING STRUT TO TRY TO STOP ACFT FORWARD PROGRESS. ACFT MOVED FORWARD 30-40' AND PROP STRUCK A 'T'-HANGAR, STOPPING ENG. LATER FOUND KEY CAN BE REMOVED FROM SWITCH AT ANY POS. REMOVING KEY WOULD NOT ENSURE SWITCH WAS IN OFF POS. WHEN FINALLY ABLE TO GET TO CABIN, PULLED KEY STRAIGHT OUT OF SWITCH BY END OF KEY RING. IT WAS WHY I THOUGHT KEY WAS IN THE OFF POS.

Data retrieved from NASA's ASRS site as of August 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.