Service difficulty report · Wire · Boeing 7378

Difficulty date
March 22, 2024
Submitted
March 26, 2024
Operation
Air carrier
Aircraft
N27268
Make and model
Boeing 7378
Aircraft serial
67523
Aircraft time
5,559 hours, 2,009 cycles
Part
Wire
Part number
286A6530
Condition
Misinstalled
Location
Main Wheel Well
Stage of operation
IN
How discovered
C
Nature of condition
W, L
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ELECTRICAL CONNECTORS IN THE MAIN WHEEL WELL DETAIL INSPECTION {B737-24-4-3085} - #2 ENG HYD SHUTOFF VALVE FAILS TEST. SLAVED IN NEW VALVE NO LUCK. DOES NOT MOVE TO OPEN POSTION WITH FIRE HANDLE UP UNMATED AND REMATED CANNON PLUG #S D46120, D40486, D46042 FOR UNMATED CANNON PLUG #S D43046 , D40400, D0764 FOR FOUND WIRE W6530-0508-20 IS INCORRECTLY INSTALLED IN PIN 3 OF TROUBLSHOOTING PURPOSES PER WM #29-11-11. OPS CHKS REQUIRED ON TROUBLESHOOTING PURPOSES PER WM #29-11-11. SUSPECT BAD WIRE RUN D40400J. SHOULD BE INSTALLED IN PIN 2 OF D40400J. W6530-1101-22 THESE. BETWEEN #D43046P AND #D40400J. IS INSTALLED IN PIN 2 AND SHOULD BE INSTALLED IN PIN 3 OF D40400J.

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