SDR UALA2009122904046

Service difficulty report · Circuit Card · Boeing 767322

Difficulty date: December 29, 2009
Submitted: December 30, 2009
Operation: Air carrier
Aircraft: N660UA
Make and model: Boeing 767322
Aircraft serial: 27115
Aircraft time: 72,402 hours, 11,743 cycles
Engine: Pwa PW4060
System (JASC): 3030 · Pitot/Static Anti-Ice System
Part: Circuit Card
Part number: 849704
Part serial: 622
Condition: Malfunctioned
Location: Pitot Heat
Stage of operation: NR
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

PROBE HEAT EICAS MSG. AFTER ACFT JACKED FOUND THE FOLLOWING IND LTS ILLUM ON P11: LT AUX PITOT, FO PITOT, RT AOA. NEEDS FURTHER TROUBLESHOOTING. FOUND K518 ENERGIZED IN AIR, AT K518 PIN X2 HAD APPROX 4 VDC,SHOULD BE 28 VDC, REPLACED PSEU VOLTAGE AT K518 OK. OP CKS OK. ALSO PRIOR TO PSEU REPLACEMENT NO WIRING FAULTS NOTED ON LISTED WDS.