SDR CALA2025122412422

Service difficulty report · Toilet · Boeing 777300ER

Difficulty date: December 21, 2025
Submitted: December 24, 2025
Operation: Air carrier
Aircraft: N2639U
Make and model: Boeing 777300ER
Aircraft serial: 62650
Aircraft time: 37,339 hours, 4,097 cycles
System (JASC): 3830 · Waste Disposal System
Part: Toilet
Condition: Malfunctioned
Location: Zone 900
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

45 MIN INTO FLT WASTE TANK 2 SHOWS FULL & ASSOC LAVS WONT FLUSH. AFTER SERVICED, WASTE TANKS, OPS CHKD & FOUND LAV B INOP. DOOR 1L LAV B TOILET WON'T FLUSH. ACCOMPLISHED LAV B OPS TEST IAW AMM 38-32-00-700-802, TOILET FLUSHED NORMALLY MULTIPLE TIMES. OK FOR SERVICE, REVERSED MEL

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