Service difficulty report · Plug · Boeing 737900ER

Difficulty date
March 23, 2023
Submitted
March 24, 2023
Operation
Air carrier
Aircraft
N38454
Make and model
Boeing 737900ER
Aircraft serial
31640
Aircraft time
33,996 hours, 12,272 cycles
Part
Plug
Part number
BACC45FT2443S
Condition
Unserviceable
Location
Aft Rh Lav (E)
Stage of operation
TX
How discovered
O
Nature of condition
B
Precautionary procedure
H

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

What was found

AFT LAV E SMOKE DET SOUNDED ON TAXI IN FA REPORTED ELEC SMOKE OD OR (D10) TRIPPED AND WILL NOT RESET WITH DOOR SWITCH AND TASK LIGH TS DISCONNECTED. TECH REMOVED AND REINSTALLED DOOR SWITCH. TASK LIGHTS IN NAPKIN COMPARTMENT REMAIN DISCONNECTED. UPDATED MAA CODE FIX USING VENDOR MAA SCREEN WHILE PERFORMING SMOKE ODOR CONDITIONAL INSPECTION PER AMM 05-51 PICTURES ATTACHED PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. -26-800-801 C1 OCM TECH SMELLED ELECTRICAL ODOR IN RIGHT AFT LAV MOST EVIDENT BEHIND NAPKIN COMPARTMENT NEAR TASK LIGHTS. TECH A LSO FOUND THE PASS CABIN SIGN AND LAV OCCUPIED SIGN C/B ON P18-3 FOUND SHORT TO BE IN THE AFT RIGHT LAV MODULE ASSEMBLE WIRING DISCONNECTS CB DOES NOT POP. COVERVED CONNECTOR AND SECURED IT. 05-51-26-800-801-C1 NO ADDITIONAL ISSUES NOTED AND FORM 46.6020 APPLIED PLACARD PER MEL HARNESS BETWEEN D3740 JACK AND DOOR SWITCH S11. WHEN D3740 COMPLETED SMOKE AND ODER INSPECTION PER REF AMM SUBMITTED. TOMC APPROVED MEL 3802A. AFT RH LAV INOP. TECH DISCONNECTED CONN D3740 FOR ADDITIONAL MARGIN OF SAFETY REF GMM 05-30-05 IN CONCURRENCE WITH IAH ESC. TOMC UPDATE: REF WDM 33-26-31.

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