Service difficulty report · Gas Generator · Skrsky S76C

Difficulty date
September 11, 2011
Submitted
January 23, 2013
Operation
Air carrier
Make and model
Skrsky S76C
Aircraft time
333 hours
Engine
Tmeca ARRIEL2S2
Part
Gas Generator
Part number
70BM037800
Condition
Overheated
Location
Engine
Stage of operation
IN
How discovered
V
Nature of condition
M
Precautionary procedure
K

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

What was found

(CAN) EXCESSIVE HEAT. DISCOLORING OF TURBINE CASING, DAMAGED WIRING HARNESS. FUEL IN P-3 AREA OF ENGINE. ACFT IS ON THE GROUND FOR FURTHER INVESTIGATION BY TECH SERVICES. PLEASE SEE PRELIMINARY COMMENTS FROM MFG ON SITE. NR 1 ENGINE AFTER DISASSEMBLY OF THE MODULE M03. WE SUSPECTED THE INJECTION MANIFOLD AND AFTER REMOVING THE RADIAL DIFFUSER WE FOUND ABNORMALITY ON THE INJECTION WHEEL/MANIFOLD LABYRINTH SEAL. THE REPLACEMENT SERVICEABLE ENGINE SHOULD BE RELEASED FROM CUSTOMS TOMORROW, PILOT SHOULD ARRIVE TUES. GROUND RUNS ARE SCHEDULED FOR WEDNESDAY MORNING. (THE MODIFICATION TU 166 WAS COMPLETED ON NR 2 ENGINE.)