Casualties unknown

1994-02-20: Stinson 108-3 (N6009M) — Hinsdale, Terry L. — Redlands, CA

Redlands, CA, US

On February 20, 1994, a Stinson 108-3 (registration N6009M) operated by Hinsdale, Terry L. was involved in an aviation accident near Redlands, CA. Investigators recorded the probable cause as: The pilot's failure to maintain visual reference during nighttime flight and his elevated blood alcohol level, which contributed to spatial disorientation and loss of control. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

A private pilot flying at night without proper certification struck a powerline while approaching an airport, resulting in a fatal crash due to spatial disorientation and alcohol impairment.

What happened

A ground witness observed the aircraft during nighttime operations, flying toward the airport at a low altitude under visual flight rules (VFR) conditions. Shortly after being sighted, the airplane collided with a 45-foot-high powerline and subsequently crashed. The accident site was located approximately 3-3/4 miles west of the airport.

The investigation

Examination of the wreckage revealed no evidence of preexisting malfunctions or failures in the airframe or engine systems. The pilot held a private pilot certificate that included a specific endorsement restricting night flying, as he had not received any night instruction prior to applying for his license. Toxicology results indicated a blood alcohol concentration of 0.18%.

Findings

The pilot's lack of night flight training and the presence of significant alcohol in his system were critical factors. The aircraft was operating outside the limitations of his certificate. The collision with the powerline occurred in low-level flight, suggesting an inability to maintain safe altitude or orientation during nighttime conditions.

Safety message

Pilots must strictly adhere to the limitations placed on their certificates. Flying at night without proper training and endorsement is dangerous and illegal. Furthermore, operating an aircraft under the influence of alcohol poses a severe risk to safety.

Probable cause

The pilot's failure to maintain visual reference during nighttime flight and his elevated blood alcohol level, which contributed to spatial disorientation and loss of control.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001206X00773. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.