Service difficulty report · Engine · Boeing 737890

Difficulty date
January 26, 2015
Submitted
January 28, 2015
Operation
Air carrier
Aircraft
N588AS
Make and model
Boeing 737890
Aircraft serial
35685
Aircraft time
27,676 hours, 8,460 cycles
Engine
Cfmint CFM567B27
Part
Engine
Condition
Faulted
Location
Nr 1
Stage of operation
IN
How discovered
O
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

NR 1 ENGINE FOUND MESSAGE 73-31351, SHORT TIME "THE APPLIED VOLTAGE INPUT TO THE EEC IS OUT OF RANGE". FOUND DURING COMPLETION OF T/C 78273000. ACFT GROUNDED. PERFORMED INITIAL EVALUATION OF FIM 73-22, TASK 808. NO FAULTS FOUND FOR NR 1 ENGINE EEC BITE. REF PARAGRAPH E. (D) 1) OF ABOVE FIM REF. INITIAL EVALUATION. "CHECK OF THE AIRPLANE PILOTS' LOG FOR INDICATION OF MOMENTARY POWER INTERRUPTION ON THE AIRPLANE." SOURCE OFF LIGHT GEN 1 ILLUMINATED. IS CAUSE OF FAULT. NO NEW FAULTS NOTED NR 1 ENGINE EEC BITE CKS GOOD.