On April 23, 1991, a Piper PA-22-108 (registration N5421Z) operated by Dale E. Frimodt was involved in an aviation accident near Millard, NE. No fatalities were reported. Investigators recorded the probable cause as: The use of a 24-volt booster instead of the specified 12-volt booster, which caused melted wires and an electrical fire. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An electrical fire erupted under the passenger seat shortly after takeoff, leading to an emergency landing and post-impact destruction of the aircraft.
What happened
The pilot reported that shortly after takeoff, an electrical fire broke out beneath the passenger's seat. The crew initiated an emergency landing procedure to address the immediate threat. Upon landing, the airplane sustained damage. A fire ignited after the aircraft came to rest, resulting in the total destruction of the airframe.
The investigation
Post-accident examination of the wreckage revealed the root cause of the electrical failure. The airplane had been started using a 24-volt booster instead of the required 12-volt booster. This voltage mismatch caused the wires to melt, leading to a short circuit and the subsequent fire.
Findings
The use of an incorrect 24-volt booster during engine start led to melted wiring. This electrical failure resulted in a fire that destroyed the aircraft.
Probable cause
The use of a 24-volt booster instead of the specified 12-volt booster, which caused melted wires and an electrical fire.
What happened in the 23 Apr 1991 Piper PA-22-108 accident near Millard, NE?
An electrical fire erupted under the passenger seat shortly after takeoff, leading to an emergency landing and post-impact destruction of the aircraft.
Were there any fatalities in the 23 Apr 1991 Piper PA-22-108 accident?
No fatalities were recorded in this accident.
What aircraft was involved and where did it happen?
The accident on 23 Apr 1991 involved a Piper PA-22-108, registration N5421Z, operated by Dale E. Frimodt, at Millard, NE.
What was the probable cause of the accident?
The use of a 24-volt booster instead of the specified 12-volt booster, which caused melted wires and an electrical fire.
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