SDR UALA2011071103416

Service difficulty report · Unknown · Boeing 777222

Difficulty date: July 10, 2011
Submitted: August 3, 2011
Operation: Air carrier
Aircraft: N796UA
Make and model: Boeing 777222
Aircraft serial: 26931
Aircraft time: 60,239 hours, 8,570 cycles
Engine: Pwa PW40903
System (JASC): 2460 · DC Power Distribution System
Part: Unknown
Condition: Malfunctioned
Location: Electrical Sys
Stage of operation: IN
How discovered: C
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

ELEC STANDBY SYS ELECTRICAL DC-STANDBY POWER SYSTEM FAILED THE SYSTEM SELF-CHECK. MTC MSG24-13783,24-13037. ACFT REPOWERED. CHECKED RELAY K24013 IN P210. NO ABNORMAL DEFECT NOTED. STATUS MSG DISAPPEARED AND FUNCTION CHECKED OK PER FIM24-32 TAS K802.