Service difficulty report · Mount · Cessna 425

Difficulty date
January 7, 2026
Submitted
January 7, 2026
Operation
General aviation
Aircraft
N353ES
Make and model
Cessna 425
Aircraft serial
4250158
Aircraft time
7,914 hours, 7,511 cycles
Engine
Pwa PT6A112
Engine time
7,914 hours, 7,437 cycles
Part
Mount
Part number
59510482
Condition
Cracked
Location
Zone 600
Stage of operation
IN
How discovered
V
Nature of condition
Z, G
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING MINOR PHASE INSPECTIONS, THE RH ENGINE OUTBOARD ENGINE MOUNT P/N: 5951048-2 WAS VISUALLY FOUND TO BE CRACKED. AFTER DEFECT WAS FOUND, ENGINE REMOVAL TOOK PLACE TO INSPECT THE REMAINING TWO ENGINE MOUNTS AND THE FWD. ENGINE TRUSS. NO VISUAL DEFECTS WERE NOTED AT THE TIME OF REMOVAL. EACH COMPONENT WAS SENT OUT TO BE SANDBLASTED AND NDI. NDI REPORT SHOWED THAT THE INBOARD ENGINE MOUNT P/N: 5951048-3 WAS ALSO CRACKED THE LENGTH OF THE WELD. THE FINAL REMAINING ENGINE MOUNT P/N: 5951048-1 HAD NO SIGNS OF CRACKS. LOG ENTRIES NOTE THAT ENGINES AND TRUSSES WERE REMOVED DURING THE PHASE 32 INSPECTIONS FOR NDI AND ALL THREE MOUNTS VISUALLY INSPECTED IN FEBRUARY 2019 WITH AN AIRCRAFT TOTAL TIME OF 7,519.6 AND NOT DUE AGAIN UNTIL 10,019.6 AIRCRAFT TOTAL TIME.

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