SDR UALA2012071703862

Service difficulty report · Eec · Boeing 757222

Difficulty date: July 17, 2012
Submitted: July 26, 2012
Operation: Air carrier
Aircraft: N545UA
Make and model: Boeing 757222
Aircraft serial: 25323
Aircraft time: 78,061 hours, 22,613 cycles
Engine: Pwa PW2037
System (JASC): 7320 · Fuel Controlling System
Part: Eec
Part number: 1B786
Condition: Malfunctioned
Location: Lt Engine
Stage of operation: NR
How discovered: 9
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

ENGINE PRI CONT STATUS MESSAGE WILL NOT CLEAR. SHUTDOWN ENGINE, EPCS SHOWS (P) AC EX EEC, RESET "L02", "L04" AND "L07" NO HELP, CYCLED EEC CHANNEL SELECT SWITCH, NO HELP. UNABLE TO CLEAR LT ENGINE PRI CONT STATUS MESSAGE. REF AMM 71-EPCS MESSAGE INDEX FIG 107 (SHEET 1) PAGE 123 FOR TROUBLESHOOTING. REPLACED EEC MR73237 PER MM 73-21-04 (401). RAN LT AND RT ENG PER JRH 2-5-1, ALL PARAMETERS NORMAL. NO STATUS MESSAGE ON EICAS PER FIM 73-21-00 FIG 115.