Service difficulty report · Harness · Boeing 737890

Difficulty date
October 3, 2021
Submitted
October 5, 2021
Operation
Air carrier
Aircraft
N506AS
Make and model
Boeing 737890
Aircraft serial
35690
Aircraft time
48,489 hours, 14,665 cycles
Engine
Cfmint CFM567B27
Part
Harness
Part number
3250434020325043
Condition
Faulty
Location
#1 Engine
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

FAULT CODE 75-30401 - THE VSV POSITION SIGNALS DISAGREE. ENG #1. SHORT TERM FAULT. DEFERR PER T/C 78273000. GROUNDED - YES. REFERENCE LOGPAGE 60269685 REMOVED AND REPLACED J9 AND J10 HARNESSES REF B737-800 AMM 73-21-06-400-802-F00 STEPS E(1,2). PERFORMED FADEC TEST REF AMM 73-21-00-700-802-F00 STEPS (D) 3.A,B,C AND E. PERFORMED REPAIR CONFIRMATION REF B737-800 FIM 75-33 TASK 805. PERFORMED ACTUATORS TEST REF AMM 71-00-00-700-807-F00, ALL TESTS PASS, ETOPS GROUND VERIFICATION SUCCESSFUL.