Service difficulty report · Fault Message · Boeing 737990ER

Difficulty date
December 6, 2018
Submitted
December 11, 2018
Operation
Air carrier
Aircraft
N428AS
Make and model
Boeing 737990ER
Aircraft serial
36353
Aircraft time
11,079 hours, 3,666 cycles
Engine
Cfmint CFM567B27E
Part
Fault Message
Condition
Activated
Location
Nr 1 Engine
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 #1 ENGINE FAULT, MSG # 77-10851. BOTTOM RIGHT EGT SIGNAL (T49.5) IS OUT OF RANGE. GROUNDED - YES. ON DEFERRAL.