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SDR ASAA2016042716551

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Service difficulty report · Eec · Boeing 737890

FAA SDR system

Difficulty date
April 27, 2016
Submitted
April 29, 2016
Operation
Air carrier
Aircraft
N584AS
Make and model
Boeing 737890
Aircraft serial
35682
Aircraft time
33,254 hours, 9,917 cycles
Engine
Cfmint CFM567B27B3
System (JASC)
7320 · Fuel Controlling System
Part
Eec
Part number
1853M33P06
Part serial
LMDN6081
Condition
Failed
Location
Nr 1 Engine
Part time
49,731 hours, 19,524 cycles
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

NR 1 ENGINE HAS SHORT TIME FAULT 75-10371, HMU VSV CONTROL CURRENT OUT OF RANGE. ACFT GROUNDED. ACCOMPLISHED FIM 75-31, TASK 801, FAULT ISOLATION INDICATES DEFECTIVE ELECTRONIC ENGINE CONTROL. REPLACED NR 1 ENGINE ELECTRONIC ENGINE CONTROL, ALL ELECTRONIC ENGINE CONTROL INSTALLATION TESTS PASS, REF AMM 73-21-60 AND 71-00-00. ACCOMPLISHED FADEC SYS TEST, ALL TESTS PASS, REF AMM 73-21-00.