Service difficulty report · Seal · Boeing 777*

Difficulty date
April 29, 2005
Submitted
May 5, 2005
Operation
General aviation
Make and model
Boeing 777*
Engine
Ge GE9090B
Part
Seal
Part number
117M62G05
Part serial
FRZR0002
Condition
Debonded
Location
Engine
Stage of operation
IN
How discovered
9
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

PART WAS PREVIOUSLY REPAIRED. REP REQUIRES USE OF BRAZE AMS 4777 OR SUITABLE TAPE ALTERNATIVE, USED TAPE SPEZ AMS 4779F, WITH OVEN TEMP 1050 DEGREES C. AMS 4779F DOES NOT MELT UNTIL 1068 DEGREES C. HONEYCOMB BECAME DISBONDED AND LIBERATED CAUSLING HPT 1 BLADE OVERHEAT DISTRESS. BRAZE JOINT FAILED WITHIN 300 CYCLES.