Service difficulty report · Vacuum Sys · Boeing 737900ER

Difficulty date
March 31, 2023
Submitted
March 31, 2023
Operation
Air carrier
Aircraft
N37465
Make and model
Boeing 737900ER
Aircraft serial
36599
Aircraft time
32,100 hours, 11,488 cycles
Part
Vacuum Sys
Part number
53383290004
Part serial
8793
Condition
Odor
Location
Fwd Lav
Stage of operation
UK
How discovered
O
Nature of condition
B
Precautionary procedure
O

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

What was found

FWD LAV INOP NOW FUNNY SMELL OF ELECTRICAL BURN ING REQUEST MEL 3802D. LAV NOT USABLE. PERFORMED CONDITIONAL INSPECTION. ODOR NOTICED WHEN FLUSH MOTOR EVIDENCE OF BURNING OR ARCING. REF AMM 05-51-26-800-801-C1. IS ACTIVATED AND DISAPATES QUICKLY. VISUAL INSP NOTED NO MEL 3802D REJECTED. NEED TO PERFORM SMOKE/ODOR IN CABIN CONDITIONAL INSPECTION IAW AMM 05-51-26. PHOTO ADDED. DISCONNECTED 3EA CANNON PLUGS FROM LAV ASSY. WIRES CAPED AND SECURED. WATER TURNED OFF TO BOTH SINK AND TOILET. HOT WATER HEATER TURNED OFF. MEL 3802D IDENTIFY AND FIX REMOVED AND REPLACED FWD LAV A TOILET VACUUM ASSY REF AMM 38-32-01-400-805-001PARTS USED: 53-3832-9-0004,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1818656 SN OFF 8793 TOILET, VACUUM, OFF 53-3832-9-0004 8793 ON 53-3832-9-0004 1826 FOUND FAULTY TOILET ASSY . REMOVED AND REPLACED FWD LAV A TOILET 59-3813-3-0001,QTY :1 VACUUM ASSY REF AMM 38-32-01-400-805-001 . REMOVED AND REPLACED WATER HEATER AS PRECAUTIONARY REF AMM 38-13-01-09B . OPS CHK AND LK CHK OK. NO ELECTRICAL BURN SMELL NOTED. PARTS USED:

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