Service difficulty report · Fault Code · Boeing 737990ER

Difficulty date
September 22, 2015
Submitted
September 28, 2015
Operation
Air carrier
Aircraft
N472AS
Make and model
Boeing 737990ER
Aircraft serial
60580
Aircraft time
1,646 hours, 536 cycles
Engine
Cfmint CFM567B27E
Part
Fault Code
Condition
Activated
Location
Nr 1 Engine
Stage of operation
IN
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

NR 1 ENGINE FAULT, CODE 77-10841, THE TOP RT EGT SIGNAL, T495ST, IS OUT OF RANGE. ECONOMIC FAULT, MUST BE CORRECTED WITHIN 500 FLIGHT HOURS. ACFT GROUNDED. ON DEFERRAL.