EASA SIB CE-16-07: Engine Mount Inspection

What to do

Operators of Air Tractor AT-802 and AT-802A airplanes within the specified serial number ranges or modifications should inspect engine mounts following Air Tractor Snow Engineering Service Letter #335. Inspection results should be reported to the Air Tractor Service Department as requested. There are no mandatory compliance deadlines, but prompt action is recommended to address the airworthiness concern.

Summary

The FAA Special Airworthiness Information Bulletin SAIB: CE-16-07 provides information regarding an airworthiness concern for Air Tractor, Inc. Models AT-802 and AT-802A airplanes. It addresses inspection procedures and maintenance actions for engine mounts, specifically focusing on certain serial numbers and configurations involving engine mount gussets and supplemental type certificates.

What changed

This SAIB introduces inspection recommendations for engine mount attach lug gussets on affected Air Tractor AT-802/802A airplanes. It highlights the need to inspect for correct gusset orientation and cracks, based on a service letter issued by Air Tractor following a reported crack discovery. The bulletin does not mandate actions but advises voluntary inspections and reporting.

Why it matters

This information is important for operators and maintenance personnel to ensure the structural integrity of engine mounts on affected aircraft, potentially preventing engine mount failures. Timely inspections can identify cracks early, enhancing safety and avoiding costly repairs or operational disruptions. Compliance teams benefit from understanding that this is an advisory, not a mandatory directive, but still critical for safety management.

What to do

Summary

What changed

Why it matters

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