SDR ASAA2016071917436

Service difficulty report · Engine · Boeing 737890

Difficulty date: July 19, 2016
Submitted: July 25, 2016
Operation: Air carrier
Aircraft: N588AS
Make and model: Boeing 737890
Aircraft serial: 35685
Aircraft time: 33,329 hours, 10,131 cycles
Engine: Cfmint CFM567B27
System (JASC): 7720 · Engine Temperature Indicating System
Part: Engine
Condition: Fault Message
Location: Nr 1
Stage of operation: IN
How discovered: V
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 ON T/C 78273000 ECONOMIC FAULT MESSAGE 77-10841, THE TOP RT EGT SIGNAL (T495S1) IS OUT OF RANGE, NR 1 ENGINE. ACFT GROUNDED. IAW FIM 77-21, TASK 801 THE TOP RT EGT SIGNAL IS OUT OF RANGE, FAULT ISOLATION. ACCOMPLISHED ELECTRONIC ENGINE CONTROL TEST, REF AMM TASK 73-21-00-700-804-F00, NO ACTIVE FAULTS FOUND. OK FOR CONTINUED SERVICE.