SDR 2007UALA02533

Service difficulty report · Drain · Boeing 767322

Difficulty date: July 10, 2007
Submitted: July 13, 2007
Operation: Air carrier
Aircraft: N643UA
Make and model: Boeing 767322
Aircraft serial: 25093
Aircraft time: 11,377 hours, 70,291 cycles
Engine: Pwa PW4060
System (JASC): 3830 · Waste Disposal System
Part: Drain
Condition: Clogged
Location: Lavatory Tank
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

RTFL DUE TO AFT LAV TANK INOP LIGHT ILLUMINATED. CREW REPORTED LAVS FULL AND OVERFLOWING. RETURNED TO FIELD DUE TO NO FUNCTIONING LAVS. FOUND DRAINS CLOGGED. UNPLUGGED DRAINS. FOUND 9 CLOTH NAPKINS, 2 RUBBER LAV DOOR SEAL, AND 2 PIECES OF POLYURETHANIC SEALS. REMOVED POINT LEVEL SENSORS, INSPECTED INSIDE BOTH WASTE TANKS. TANKS ARE EMPTY. RE-INSTALLED SENSORS IAW AMM38-33-01. ALL LAV WORKS OK. AIRCRAFT RETURNED TO SERVICE.