Service difficulty report · Motor · Pilats PC1247

Difficulty date
August 25, 2014
Submitted
August 27, 2014
Operation
Air carrier
Aircraft
N877AF
Make and model
Pilats PC1247
Aircraft serial
877
Aircraft time
4,765 hours, 4,665 cycles
Engine
Pwa PT6A67D
Engine time
4,765 hours, 4,665 cycles
Propeller
Hartzl HCE4A3A
Part
Motor
Part number
11341041
Part serial
992
Condition
Burned Out
Location
Zone 100
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

CRUISE FLIGHT, ODD ELEC NOISE, BUS TIE CAWS, NON-ESSENTIAL CAWS & FLICKERING BATTERY CAWS, BUS TIE & GEN 2 TIE RELAYS POPPED. BATTERY 1 AMPS DISCHARGING. STRONG ELEC ODOR INSIDE TAIL SECTION NOTED UPON LANDING. THE VCCS SYS DRIVE MOTOR PN 1134104-1, SN 992 WAS FOUND BURNED OUT & AT FAULT. THE MOTOR R & R IAW THE ENVIRO SYSTEMS R134A CMM CH 21-00-23. THE VCCS SYS OPERATIONS CHECKED GOOD. THE ACFT DC GENERATION ADJUSTMENT TEST WAS COMPLETED IAW 12-A-24-30-00-00A-903B-A. NO FURTHER DEFECTS WERE NOTED.