SDR ASAA1057962

Service difficulty report · Unknown · Boeing 737890

Difficulty date: June 16, 2010
Submitted: June 21, 2010
Operation: Air carrier
Aircraft: N559AS
Make and model: Boeing 737890
Aircraft serial: 35178
Aircraft time: 14,176 hours, 4,242 cycles
System (JASC): 7720 · Engine Temperature Indicating System
Part: Unknown
Condition: Malfunctioned
Stage of operation: IN
How discovered: O
Nature of condition: O
Precautionary procedure: K

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

What was found

WHILE ACCOMPLISHING FMC CDU T/C FOUND CODE 77 10842 THE TOP RIGHT EGT SIGNAL 9T495 S1) IS OUT OF RANGE FOR NR 2 ENGINE AND 77 10852 THE BOTTOM RIGHT EGT (T49552) IS OUT OF RANGE FOR NR 2 ENG. FAULT CODES 77 10842 AND 77 10852 LOGGED IN FLIGHT LEG 1 ONLY. FOLLOWED FIM 77 21 TASK 801 IN INITIAL EVALUATION FOUND CODE 73 10122 FOLLOWED FIM 73 21 TASK 801. ACCOMPLISHED EEC TEST, NO FAULTS. GROUND VERIFICATION TEST PASSED.