AAIB investigation to Quad City Challenger II, G-MYIX

Propeller drive failure and forced landing, near Louth, Lincolnshire, 2 May 2014.

• From: Air Accidents Investigation Branch
• Published: 10 December 2014

• Category: Sport aviation and balloons
• Report type: Bulletin - Correspondence investigation
• Date of occurrence: 2 May 2014
• Aircraft type: Quad City Challenger II
• Location: Louth, Lincolnshire
• Registration: G-MYIX

Summary:

During a check flight the pilot applied full power prior to conducting a timed climb. However, the engine rpm suddenly increased and it became apparent that the drive to the propeller had become disconnected. The aircraft was damaged in the subsequent forced landing, although the occupants were uninjured. It was found that the drive belt that connected the engine driveshaft to the propeller shaft, located immediately above the engine driveshaft, had migrated out of the groove in the lower pulley. This may have been the result of a degree of misalignment between the engine driveshaft and propeller shaft.

Download report:

Quad City Challenger II G-MYIX 11-14.pdf

Published 10 December 2014