WEBER ACRO SPORT II
Plum City, WI — September 5, 2010
Event Information
| Date | September 5, 2010 |
| Event Type | ACC |
| NTSB Number | CEN10CA525 |
| Event ID | 20100908X61604 |
| Location | Plum City, WI |
| Country | USA |
| Coordinates | 44.69333, -92.15028 |
| Highest Injury | MINR |
Aircraft
| Make | WEBER |
| Model | ACRO SPORT II |
| Category | AIR |
| FAR Part | 091 |
| Aircraft Damage | SUBS |
Conditions
| Light Condition | DAYL |
| Weather | VMC |
Injuries
| Fatal | 0 |
| Serious | 0 |
| Minor | 2 |
| None | 0 |
| Total Injured | 2 |
Event Location
Probable Cause
The pilot’s improper fuel planning, which resulted in a loss of engine power due to fuel exhaustion.
Full Narrative
The pilot indicated that the experimental amateur-built biplane lost engine power during cruise about 20 minutes into a cross-country flight. The terrain where the airplane sustained substantial damage to its lower left spar during an off field landing consisted of rolling hills. He reported that he departed with approximately 10 to 11 gallons of 100 low lead aviation gasoline. The pilot’s accident report stated the airplane remained intact following the accident. An on-scene examination of the wreckage revealed no pre-impact anomalies and the fuel system was intact. The indicated on-scene fuel level was in a red colored range on the fuel sight gauge.
About This NTSB Record
This aviation event was investigated by the National Transportation Safety Board (NTSB). NTSB investigates all U.S. civil aviation accidents to determine probable cause and issue safety recommendations to prevent future accidents.