Service difficulty report · Shaft

Difficulty date
August 9, 2025
Submitted
August 25, 2025
Operation
General aviation
Engine
Rroyce TRENTXWB84
Engine time
7,320 hours, 3,038 cycles
Part
Shaft
Part number
KH30620
Part serial
RRDSFTEBAP706
Condition
Corroded
Location
Engine
Part time
7,320 hours, 3,038 cycles
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

CORROSION PITTING REMAINED ON THE SHANK NUT HOLE LOCATION 30 OF ESN 26028 IPC REAR STUB SHAFT AFTER MACHINED TO THE MAXIMUM LIMIT IAW RR EM FRSC383. PART WAS REJECTED BY RR TV255302 (CSN: 2473 SDC) WHICH IS RETIRED BEFORE ITS DECLARED LIFE IN TLM (7123 SDC).