SDR ASAA2015092613215

Service difficulty report · Fault Code · Boeing 737890

Difficulty date: September 26, 2015
Submitted: September 29, 2015
Operation: Air carrier
Aircraft: N506AS
Make and model: Boeing 737890
Aircraft serial: 35690
Aircraft time: 28,046 hours, 8,637 cycles
Engine: Cfmint CFM567B27
System (JASC): 7720 · Engine Temperature Indicating System
Part: Fault Code
Condition: Activated
Location: Lt Egt
Stage of operation: IN
How discovered: 9
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 T/C 78273000, FOUND A LONG TERM FAULT MSG 77-20872, TOP LT EGT SIGNAL, T495S4, IS OUT OF RANGE ON NR 2 ENGINE. ACFT GROUNDED. ACCOMPLISHED FIM 77-21 TASK 804. ACCOMPLISHED ELECTRONIC ENGINE CONTROL TEST REF MM 73-21-00-700-804-F00. OPS CK GOOD WITH NO FAULTS FOUND.