Service difficulty report · Wire Harness · Boeing 737890

Difficulty date
August 20, 2015
Submitted
August 20, 2015
Operation
Air carrier
Aircraft
N530AS
Make and model
Boeing 737890
Aircraft serial
36578
Aircraft time
21,039 hours, 6,338 cycles
Engine
Cfmint CFM567B27
Part
Wire Harness
Part number
3250349020
Condition
Unknown
Location
Nr 2 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 TASK CARD 78273000, FOUND FAULT FMV POSITION SIGNAL IS OUT OF RANGE. MSG NR: 73-10342. SHORT TERM. NR 2 ENGINE. FOUND FAULT VSV POSITION SIGNAL IS OUT OF RANGE. MSG 75-10392. LONG TERM, NR 2 ENGINE. FOUND FAULT VSV POSITION SIGNAL IS OUT OF RANGE, MSG: 75-10392. LONG TERM FAULT. ACFT GROUNDED IAW TECH SERVICES: ACCOMPLISHED FIM 75-34, TASK 817 VSV, VBV, FMV, CHANNEL A. LVDT EXCITATION CIRCUIT FAULT- FAULT ISOLATION. ELECTRICAL ENGINE CONTROL TEST NORMAL, ACTUATORS TEST PASSED. GVI NORMAL, ALL RESISTANCE VALUES WERE WITHIN LIMITS. AS A PRECAUTION, REPLACED THE, J5 FAN WIRING HARNESS REF AMM 73-21-06-000-801-F00. ACTUATORS TEST NORMAL, ELECTRICAL ENGINE CONTROL TEST NORMAL.