Service difficulty report · Wire Harness · Boeing 737890

Difficulty date
June 8, 2019
Submitted
July 23, 2019
Operation
Air carrier
Aircraft
N570AS
Make and model
Boeing 737890
Aircraft serial
35185
Aircraft time
46,601 hours, 13,842 cycles
Engine
Cfmint CFM567B27
Part
Wire Harness
Part number
3250257020
Condition
Damaged
Location
Nr 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

FOUND #1 ENG LONG TIME FAULT 73-10811 THE T12 SIGNAL IS OUT OF RANGE. GROUNDED - YES. EEC TEST SHOWS FAULT MESSAGE 73-10811. REF B737-800 AMM 73-21-05-200-801-F00, FOUND T12 SENSOR J7 HARNESS CONNECTOR HAD FALLEN OFF OF J7 RECEPTACLE. THREADS ON RECEPTACLE END APPEAR TO BE PARTIALLY STRIPPED AND CONNECTOR WILL NOT TIGHTEN ONTO IT. REMOVED AND REPLACED J7 HARNESS IAW AMM 73-21-06/401. T12 SENSOR NOW CONNECTS PROPERLY TO J7 HARNESS. EEC TEST PASSES WITH NO FAULTS REF AMM 73-21-00-700-804. TEST 12 - ACTUATORS TEST PASSED REF AMM 71-00-00-700-807-F00.