On September 7, 1985, a Globe GC-1B (registration N11HN) was involved in an aviation accident near Romeoville, IL. Investigators recorded the probable cause as: Disconnection of the throttle control from the carburetor, resulting in a complete loss of engine power during climbout. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An aircraft experienced a complete loss of power during climbout in the traffic pattern. Witnesses reported no engine noise before impact. Investigation revealed the throttle control was disconnected from the carburetor.
What happened
The pilot was reportedly departing on an cross-country flight. During the climbout phase within the traffic pattern, the aircraft was observed turning back toward the airport as it reached the base leg area. The aircraft then descended and struck the ground.
Witnesses reported hearing no sound of engine operation prior to the impact. This suggests a sudden cessation of power rather than a gradual loss.
The investigation
Examination of the wreckage revealed that the throttle control was found disconnected from the carburetor. This mechanical failure explains the immediate loss of engine power and the subsequent inability to maintain altitude or return safely to the airport.
No other mechanical anomalies were cited in the provided source text regarding the cause of the disconnection.
Probable cause
Disconnection of the throttle control from the carburetor, resulting in a complete loss of engine power during climbout.