SDR HALA2010072500326

Service difficulty report · Electrical Box · Boeing 767332

Difficulty date: July 25, 2010
Submitted: July 26, 2010
Operation: Air carrier
Aircraft: N594HA
Make and model: Boeing 767332
Aircraft serial: 23275
Aircraft time: 72,328 hours, 31,902 cycles
Engine: Ge CF680
System (JASC): 7797 · Engine Indicating System Wiring
Part: Electrical Box
Condition: Malfunctioned
Location: Thermocouple
Stage of operation: CL
How discovered: O
Nature of condition: N
Precautionary procedure: O

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

What was found

ETOPS SIGNIFICANT SYS - NR 2 EGT DROPPED TO 16 DEG IN CLIMP, WITH ALL OTHER ENGINE READINGS NORMAL (BOTH EICAS AND STBY ENGINE GAUGES) EGT RESUMED NORMAL DISPLAY ABOUT AFTER TAKEOFF. PERFORMED FIM 77-21-00, FIG 103 INSPECTED THERMOCOUPLE PROBES NO DEFECTS NOTED, INSPECTED CABLES, NO DEFECTS NOTED. REPLACED THERMOCOUPLE JUNCTION BOX IAW AMM 77-21-02, ON ENG RUN EGT READINGS NORMAL.