SDR ASAA2016072117481

Service difficulty report · Engine · Boeing 737890

Difficulty date: July 21, 2016
Submitted: July 25, 2016
Operation: Air carrier
Aircraft: N581AS
Make and model: Boeing 737890
Aircraft serial: 35188
Aircraft time: 35,330 hours, 10,690 cycles
Engine: Cfmint CFM567B27
System (JASC): 7200 · Engine (Turbine/Turboprop)
Part: Engine
Condition: Faulted
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

WHILE ACCOMPLISHING T/C 78273000, FOUND NR 1 ENGINE ECONOMIC FAULT 73-31371. UPPER EGT SECTIONS READING HIGH. ACFT GROUNDED. ACCOMPLISHED ELECTRONIC ENGINE CONTROL BITE 1 EVENT LAST 10 LEGS, LEG 2. CLEANED EGT HARNESS. S1=47, S2=26, S3=26, S4=51, PRE & POST CLEANING. OPS TESTED GOOD.