SDR ASAA2017122923061

Service difficulty report · Indication Sys · Boeing 737890

Difficulty date: December 29, 2017
Submitted: January 2, 2018
Operation: Air carrier
Aircraft: N585AS
Make and model: Boeing 737890
Aircraft serial: 35683
Aircraft time: 39,509 hours, 11,820 cycles
System (JASC): 7722 · Engine EGT/TIT Indicating System
Part: Indication Sys
Condition: Out Of Tolerance
Location: Egt System
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

FOUND A NR2 ENGINE FAULT MESSAGE 77-10852, THE BOTTOM RIGHT EGT SIGNAL IS OUT OF RANGE, ECONOMIC FAULT, ACFT GROUNDED. PERFORMED EEC BITE IAW FIM 73-00, TASK 801. NO FAULTS FOUND IN RECENT FAULTS OR FAULT HISTORY. PERFORMED INITIAL EVAL PER FIM 77-21 TASK 802, COMPARISON BETWEEN T495 PROBES S1-S4 S2-S3 WITHIN LIMITS.