Service difficulty report · Connector · Boeing 777222

Difficulty date
February 29, 2012
Submitted
March 28, 2012
Operation
Air carrier
Aircraft
N779UA
Make and model
Boeing 777222
Aircraft serial
26941
Aircraft time
64,123 hours, 11,435 cycles
Engine
Pwa PW4077
Part
Connector
Part number
D5184D5184PR
Condition
Shorted
Location
Cabin
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

ACP'D CONT CK OF ALL DATA FEED PAIRS FROM OEU 3-1-1 TO 3-1-12. ALL CKS GOOD BUT FOUND THAT FROM OEU 3-1-12 (M23409) CONNECTOR DM23409A, PINS 11 TO 12, THRU THE TERMINATOR WAS 17 OHMS. RT SIDE WAS 120 OHMS. NEEDS TERMINATOR RESISTOR R23117 (MFG P-N CTER -120), AOG H4364. REF WDM 23-33-54, PG 3, SHEET 1. RPLC'D CONNECTOR D5184 & D5184PR SHORTING RECEPTICLE, ALL READING LIGHTS, SEAT BELT SIGNS, CALL LIGHTS, SIDEWALL LIGHTS TEST GOOD FROM SEATS 30ABC TO 42ABC. DURING T-S FOUND SEVERAL OEU'S INOP. SLAVED IN OEU'S AT 3-1-4, 5 AND 6 AND AND ALL CALL, READING AND SIGN LITES NOW WORK UP TO AND INCLUDING ROW 39. FOUND BROKEN WIRE, BURNED WIRES NEAR CONTACTS ON CONNECTOR D5184P, BURNED SMELL ON SHORTING RECEPTACLE AND BURN MARKS, REPLACED WIRE, CONTACTS AND CONNECTOR D5184P, REPLACED NEW SHORTING RECEPTACLE D5184PR, TESTS GOOD.