Service difficulty report · Wire Harness · Boeing 737990ER

Difficulty date
October 17, 2023
Submitted
October 18, 2023
Operation
Air carrier
Aircraft
N459AS
Make and model
Boeing 737990ER
Aircraft serial
36352
Aircraft time
35,787 hours, 11,220 cycles
Part
Wire Harness
Part number
3250434020
Condition
Damaged
Location
#2 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

MW311 HARNESS, #2 ENGINE, HAS DAMAGE NEXT TO BLEED AIR REGULATOR. GROUNDED - YES. REMOVED AND PARTIALLY INSTALLED SERVICEABLE MW0311 REF MM 73-21-06. 4 C/B'S TAGGED.RM 53815 10/17/2023 COMPLETED INSTALLATION OF MW0311, REF AMM 73-21-06 PERFORMED GROUND WING TAI SOLENOID VALVE TEST REF AMM 30-11-12. OPS CHECK GOOD. STILL REQUIRES INSTALLATION TEST OF MW0311 HARNESS, LISTED ON 73-21-06-400-802, STEP F. (C). R GRIMALDO 22707 10/17/2023 FADEC SYSTEM TEST PASS MM 73-21-00-700-802. BLEED AIR REGULATOR OP TEST PASS MM 73-21-06-400-802, AVM OP TEST PASS MM 77-31-00-710-801, ALL C/B'S RESET. ENGINE COWLS, AND T/R'S OPENED AND CLOSED MM 78-21-00.