CT114058 Tutor - Epilogue

Report / August 25, 2015 / Project number: CT114058 Tutor - B Category

Location: Moncton, New Brunswick
Date: 2015-08-25
Status: Investigation Complete

A Snowbird aircraft (CT114058) was diverted from the rest of the deployed team due to an in-flight emergency. The aircraft was repaired, including a successful maintenance test flight, and was refuelled for a later departure to re-join the Snowbird team. As the aircraft was being prepared by a technician, the pilot was showing it to students from the local Flight College on Tuesday 25 Aug 15. At approximately 1750 local in Moncton, NB, the technician was topping up the right hand main tire with a borrowed nitrogen cart, the technician misread the gauge and the tire was over pressurized causing it to explode.

The investigation focused on why an experienced technician would misread a gauge and the reasons why technicians across the Royal Canadian Air Force (RCAF) forgo the use of the inflator assembly kit which prevents the over inflation of tires. The investigation also looked into the practice of conducting servicing on an aircraft while being showcased to civilians.

The investigation concluded that all reasons why technicians elect to deviate from the Approved Maintenance Program by not using the inflator assembly kit, either because of lack of availability or familiarity with the kit, are avoidable. Preventive measures are recommended to alleviate those circumstances.

The investigation also put forth safety recommendations with respect to showcasing aircraft that are being maintained and that the inflating procedure manual be clarified to alleviate any potential confusion.

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