SDR 2008UALA06495

Service difficulty report · Control Switch · Boeing 767322

Difficulty date: November 11, 2008
Submitted: November 18, 2008
Operation: Air carrier
Aircraft: N651UA
Make and model: Boeing 767322
Aircraft serial: 25389
Aircraft time: 72,072 hours, 11,679 cycles
Engine: Pwa PW4060
Engine time: 16,186 hours, 10,047 cycles
System (JASC): 7321 · Fuel Control/Turbine Engines
Part: Control Switch
Condition: Malfunctioned
Location: Lt Eec
Stage of operation: IN
How discovered: O
Nature of condition: W, J
Precautionary procedure: O

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

What was found

THE 'L ENG EEC MODE' EICAS MSG DISPLAYED. NOW OPERATING IN N1 MODE. REPLACED NR 1 EEC IAW MM 73- 21-04 FOR TS (L ENG EEC MODE) CAUTION MSG DISPLAYED ON UPPER EICAS. REPLACED LEFT DADC, LEFT ENG EEC CONTROL SWITCH, RAN BOTH ENGINES. COULD NOT DUPLICATE PROBLEM OR GET ANY STATUS MESSAGES.