Service difficulty report · Shaft · Cessna 208B

Difficulty date
February 18, 2025
Submitted
February 18, 2025
Operation
General aviation
Make and model
Cessna 208B
Aircraft serial
208B0964
Aircraft time
11,036 hours, 26,883 cycles
Engine
Garrtt TPE33112JR
Engine time
7,000 hours, 8,376 cycles
Part
Shaft
Part number
31034053
Condition
Worn
Location
Gearbox
Component
Gearbox · Hnywl
Component part number
31035992
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

ACCESSORY GEAR AND DRIVE IDLER ASSEMBLY [PN: 3103599-2, SN: 10P27504] FOUND DAMAGED DURING 7,000 HOUR OVERHAUL PERIODIC INSPECTION. DAMAGE FOUND DURING INSPECTION INCLUDED SPLINED SHOULDERED SHAFT [PN: 3103405-3] SPLINES AND SHAFT SURFACES WORN. SPUR GEAR [PN: 3103589-1, LN: 09-169019-335] GEAR TEETH, INTERNAL SPLINES AND GEAR SURFACES WORN. SPUR GEAR [PN: 3103406-2] WORN GEAR TEETH AND GEAR SURFACES.

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