Piper cub J5 runs into hangar at sgu after pilot hand propellers engine with no assistance.

Attributes
ACN	415809
Time
Date	199809
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sgu
State Reference	UT
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Piper Aircraft Corp Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	ground : preflight
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : cfi pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 30 flight time total : 7000 flight time type : 1
ASRS Report	415809
Events
Anomaly	conflict : ground critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

The situation occurred after hand-propping a piper J5 cub. This was a 1 person operation. The checklist had been followed, and brakes were set. I had been informed by one of the owners that, based on past experience with the brakes set and the throttle just cracked 'a hair,' the airplane would not move. I followed this advice, but as the engine started, it went to a higher RPM, and the brakes did not hold. I immediately ran around the wingtip to the door, in an attempt to get in and stop it, but it had started to move on its own. In the process of my trying to get in, it traveled a short distance, and ran head-on into a hangar door, and came to a sudden stop. The propeller stopped almost immediately. There appears to be no damage to the airframe. In hindsight, it should have been a 2 man operation. This could have been avoided.

Original NASA ASRS Text

Title: PIPER CUB J5 RUNS INTO HANGAR AT SGU AFTER PLT HAND PROPS ENG WITH NO ASSISTANCE.

Narrative: THE SIT OCCURRED AFTER HAND-PROPPING A PIPER J5 CUB. THIS WAS A 1 PERSON OP. THE CHKLIST HAD BEEN FOLLOWED, AND BRAKES WERE SET. I HAD BEEN INFORMED BY ONE OF THE OWNERS THAT, BASED ON PAST EXPERIENCE WITH THE BRAKES SET AND THE THROTTLE JUST CRACKED 'A HAIR,' THE AIRPLANE WOULD NOT MOVE. I FOLLOWED THIS ADVICE, BUT AS THE ENG STARTED, IT WENT TO A HIGHER RPM, AND THE BRAKES DID NOT HOLD. I IMMEDIATELY RAN AROUND THE WINGTIP TO THE DOOR, IN AN ATTEMPT TO GET IN AND STOP IT, BUT IT HAD STARTED TO MOVE ON ITS OWN. IN THE PROCESS OF MY TRYING TO GET IN, IT TRAVELED A SHORT DISTANCE, AND RAN HEAD-ON INTO A HANGAR DOOR, AND CAME TO A SUDDEN STOP. THE PROP STOPPED ALMOST IMMEDIATELY. THERE APPEARS TO BE NO DAMAGE TO THE AIRFRAME. IN HINDSIGHT, IT SHOULD HAVE BEEN A 2 MAN OP. THIS COULD HAVE BEEN AVOIDED.

Data retrieved from NASA's ASRS site as of July 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.