Service difficulty report · Shaft · Swrngn SA227*

Difficulty date
September 24, 2024
Submitted
October 30, 2024
Operation
General aviation
Make and model
Swrngn SA227*
Aircraft serial
AC743B
Aircraft time
14,812 hours
Engine
Garrtt TPE33111U
Engine time
28,436 hours, 35,577 cycles
Part
Shaft
Part number
31082891
Condition
Sheared
Location
Scav Pump
Component
Scavenge Pump
Component part number
31082822
Stage of operation
IN
How discovered
V
Nature of condition
K
Precautionary procedure
K

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

What was found

ENGINE REMOVED FOR DISCOLORED OIL AND EXCESSIVE OIL CONSUMPTION, ONE QUART EVERY TWO HOURS. INSPECTION REVEALED OIL SCAVENGE PUMP ASSEMBLY SCORED (PN: 3108282-2). SCAVENGE PUMP GEAR SHAFT DRIVE KEY SLOT ELONGATED (PN: 3108286-1) DRIVE KEY SHEARED (PN: 3108289-1). TURBINE SCAVENGE PUMP ASSEMBLY SPUR GEAR SHAFT PITTED (PN: 3102270-4).