Event Overview
During a descent toward a right base entry for runway 28R, the pilot experienced a loss of engine power after switching from the left to the right fuel tank. The pilot then attempted a forced landing in a residential area. During the landing attempt, the airplane's right wing collided with an electrical transmission line. Subsequently, the airplane collided with a tree and a portion of an apartment building.
Fuel System Examination
Post-accident examination revealed that both fuel tanks and their associated lines were intact, with no evidence of leakage around the fuel filler caps. Approximately 2.5 gallons of fuel was recovered from the left tank. There was no measurable fuel quantity in the right tank. The fuel selector valve handle was found positioned to the right tank. The accuracy of the fuel gauges' calibration could not be determined. No evidence of a flight planning or fuel usage calculation was found in the wreckage. The total quantity of fuel on board at the time of the last departure is unknown.
Engine Testing
During post-accident testing, the engine was supplied with fuel and started and ran for several minutes without any discrepancies. The 2-bladed propeller exhibited damage consistent with a windmilling propeller (i.e., not producing thrust).
Pilot Statement
The pilot stated that he has no recollection of the accident.