Service difficulty report · Gearshaft

Difficulty date
August 3, 2009
Submitted
August 3, 2009
Operation
General aviation
Engine
Allsn 250C20B
Engine time
676 hours, 507 cycles
Part
Gearshaft
Part number
6899402
Part serial
NN510085
Condition
Worn
Location
Gearbox
Part time
676 hours, 507 cycles
Component
Gearbox · Rroyce
Component part number
6894171
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

METAL IN OIL. MATERIAL LOSS ON GEAR TEETH, WORN THROUGH NITRIDE COATING.