SDR HEEA107333

Service difficulty report · Hmu · Skrsky S76C

Difficulty date
June 14, 2005
Submitted
December 28, 2005
Operation
Air carrier
Aircraft
N276X
Make and model
Skrsky S76C
Aircraft serial
760405
Aircraft time
7,348 hours
Engine
Tmeca ARRIEL1S1
Part
Hmu
Part number
292858560
Part serial
1095B
Condition
Malfunctioned
Location
Engine
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

MASTER CAUTION 5-PACK ILLUMINATED. CHECKED CAUTION PANEL AND NR 2 LOW FUEL PRESSURE SEGMENT WAS DIMLY ILLUMINATED. MASTER CAUTION WOULD NOT RESET. SUSEQUENTLY NR 2 DECU DEGRADE LIGHT ILLUMINATED. CHECKED DDR FAULT. P3 DRIFT WAS THE DEGRADE. THEN FUEL PRESSURE GAUGE, N1 AND TORQUE BEGAN OSCILLATING MODERATELY. TRIED MANUAL TRAINING START SWITCH TO ISOLATE OSCILLATING ENGINE. NO EFFECT. WHEN PNF BEGAN RETARDING NR 2 ENGINE LEVER FROM THE FLY GATE, ENGINE FLAMED OUT. REPLACED HMU.