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A pilot hand propped his aircraft; restrained by chocks; because of a weak battery. After the engine started; the aircraft taxied unattended until it struck a parked aircraft.
| Attributes | |
| ACN | 863303 |
| Time | |
| Date | 200912 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Small Aircraft Low Wing 1 Eng Fixed Gear |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Taxi |
| Aircraft 2 | |
| Make Model Name | M-20 B/C Ranger |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Engine |
| Person 1 | |
| Function | Single Pilot |
| Qualification | Flight Crew Instrument Flight Crew Private |
| Experience | Flight Crew Last 90 Days 0 Flight Crew Total 1700 Flight Crew Type 75 |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Ground Event / Encounter Aircraft |
Narrative:
Aircraft was pulled from tie-down and turned 90 degrees for start to taxi to hangar. Due to weak battery; aircraft did not start. Wheels were chocked for hand prop; throttle was cracked. When engine started after 5th blade; it revved up to approximately 1800 RPM; then aircraft rolled over chocks and proceeded ahead approximately 100 ft; where it contacted parked aircraft. Significant damage to both aircraft; but no injuries beyond scraped knee when pilot scrambled from rotating prop; and fell under wing. Chocks were insufficient to hold airplane past certain engine RPM. In spite of history of sticking; brakes should have been set. Tail should have been secured as well; in spite of airport administration reference not to have aircraft started in tie-down spots. Incident would have been avoided with the combination of better chocks; lower throttle setting; set brakes; tail tied-down; or second pilot in cockpit holding brakes and controlling throttle.
Original NASA ASRS Text
Title: A pilot hand propped his aircraft; restrained by chocks; because of a weak battery. After the engine started; the aircraft taxied unattended until it struck a parked aircraft.
Narrative: Aircraft was pulled from tie-down and turned 90 degrees for start to taxi to hangar. Due to weak battery; aircraft did not start. Wheels were chocked for hand prop; throttle was cracked. When engine started after 5th blade; it revved up to approximately 1800 RPM; then aircraft rolled over chocks and proceeded ahead approximately 100 FT; where it contacted parked aircraft. Significant damage to both aircraft; but no injuries beyond scraped knee when pilot scrambled from rotating prop; and fell under wing. Chocks were insufficient to hold airplane past certain engine RPM. In spite of history of sticking; brakes should have been set. Tail should have been secured as well; in spite of airport administration reference not to have aircraft started in tie-down spots. Incident would have been avoided with the combination of better chocks; lower throttle setting; set brakes; tail tied-down; or second pilot in cockpit holding brakes and controlling throttle.
Data retrieved from NASA's ASRS site as of April 2012 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.