Service difficulty report · Connector · Boeing 737890

Difficulty date
October 22, 2015
Submitted
October 26, 2015
Operation
Air carrier
Aircraft
N530AS
Make and model
Boeing 737890
Aircraft serial
36578
Aircraft time
21,728 hours, 6,572 cycles
Engine
Cfmint CFM567B27
Part
Connector
Condition
Loose
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

ACOMPLISHING TASKCARD 78273000, FOUND NR 2 ENGINE SHORT TIME FAULT 73-10342, THE FMV POSITION SIGNAL IS OUT OF RANGE, LONG TIME FAULT 75-10392 THE VSV POSITION SIGNAL IS OUT OF RANGE, AND LONG TIME FAULT 75-10442 THAT VBV POSITION SIGNAL IS OUT OF RANGE. ACFT GROUNDED. ACCOMPLISHED TROUBLESHOOTING IAW FIM 75-34, TASK 817. INITIAL EVALUATION SHOWED NO CURRENT FAULTS. MEASURED RESISTANCE OF VSV AND VBV THROUGH J9 HARNESS AT ELECTRONIC ENGINE CONTROL. ALL VALUES ARE WITHIN LIMITS. MEASURED RESISTANCE OF FMV THROUGH J5 HARNESS AT ELECTRONIC ENGINE CONTROL. VALUES WITH IN LIMITS BUT HAVE A 10 OHM FLUCTUATION. RESISTANCE AT FMV RECEPTACLE AT HMU IS STEADY AND WITHIN LIMITS. CONNECTOR DP0505 DOES NOT SECURE PROPERLY TO J5 AT ELECTRONIC ENGINE CONTROL. R & R J5 HARNESS IAW 73-21-06. ACTUATORS TEST PASSED.