Service difficulty report · Seal

Difficulty date
December 5, 2024
Submitted
December 19, 2024
Operation
General aviation
Engine
Cfmint LEAP1B21
Part
Seal
Part number
1710M66P03
Part serial
173R0
Condition
Missing
Location
Engine
Part time
11,384 hours, 4,208 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

DURING DISASSEMBLY OF THE ENGINE ESN 603166 AAL AND WHILE SEPARATING THE HIGH PRESSURE TURBINE STATOR INTO SUBASSEMBLIES THE MECHANICS OBSERVED A MISSING OF ROPE SEAL. (REFER TO ATTACHED PRESENTATION FOR FURTHER DETAILS). THIS IS THE FIRST SHOP VISIT OF THIS ENGINE AND AS THIS FINDING IS NOT LINKED TO OR INDUCED BY THE ACTIVITY OF THE SQY SHOP, SAFRAN AIRCRAFT ENGINES PROPOSES CLOSING THIS OCCURRENCE. THE TCH (CFM) HAS BEEN INFORMED.