On June 5, 1985, a DE Havilland DH 82A TIGER MOTH (registration N99108) was involved in an aviation accident near Orland, CA. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
A pilot reported an engine power loss during a loop leading to an inverted spin and ground impact. Witnesses observed the maneuver from low altitude. Blood test revealed a 0.145% alcohol level. No preimpact mechanical failure found.
Accident Overview
The pilot of the aircraft reported that during the execution of a loop maneuver, the engine lost power, causing the aircraft to enter an inverted spin. According to the pilot, he was able to exit the inverted spin and was in the process of recovering from a regular spin when the aircraft struck the ground.
Witness Account
A witness stated that the pilot initiated the maneuver from a very low altitude and that the engine stalled as the aircraft was climbing straight upward.
Investigation Findings
Post-accident examination revealed no evidence of preimpact part failure or malfunction. Investigators noted that the pilot was observed consuming several beers prior to the accident. A subsequent blood test indicated a blood alcohol level of 0.145%.