Service difficulty report · Wire Harness · Boeing 737990ER

Difficulty date
May 10, 2022
Submitted
May 12, 2022
Operation
Air carrier
Aircraft
N483AS
Make and model
Boeing 737990ER
Aircraft serial
36350
Aircraft time
24,735 hours, 7,815 cycles
Engine
Cfmint CFM567B27E
Part
Wire Harness
Part number
3250434020
Condition
Worn
Location
#1 Engine
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

DURING #1 ENG INLET INSP ASA TASK CARD 78472000, FOUND CORE WIRING HARNESS MW0311 OUTER SHEATHING WORN THROUGH TO BRAIDED MATERIAL DUE TO CHAFING WITH PREVIOUS REPAIR ON J9 HARNESS, RIGHT SIDE OF ENGINE. GROUNDED - YES. REPLACED J9 ( REF B737-900 AMM 73-21-06-400-802-F00 ) AND MW0311 ( REF AMM 73-21-06-400-802 ) ON #1 ENGINE. ACCOMPLISHED FADEC SYSTEM TEST REF AMM 73-21-00-700-802-F00. ACCOMPLISHED GROUND WING TAI SOLENOID VALVE TEST REF AMM 30-11-12-710-801. ALL TEST PASS INCLUDING BLEED AIR REGULATOR OPERATIONAL TEST. ALL TESTS PASS. REF AMM 77-31-00.