SDR UALA2011021800847

Service difficulty report · Packing · Boeing 747422

Difficulty date: February 18, 2011
Submitted: February 18, 2011
Operation: Air carrier
Aircraft: N175UA
Make and model: Boeing 747422
Aircraft serial: 24382
Aircraft time: 80,964 hours, 9,182 cycles
Engine: Pwa PW4056
System (JASC): 3800 · Water and Waste System
Part: Packing
Condition: Leaking
Location: Water System
Stage of operation: NR
How discovered: O
Nature of condition: W
Precautionary procedure: O

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

What was found

RAN OUT OF WATER 9 HRS INTO FLIGHT. QTY WAS FULL BEFORE DEPARTURE. SERVICED WATER TO 95 PERCENT FULL THEN CHECK. NO LEAK FOUND ON GROUND. WATER SOV SWITCH OFF AND M41, 42 COFFEEMAKER DEACTIVATED. DEFER IAW MEL. REPLACED PACKING. OPS CHECKED OK. NO LEAK FOUND. REACTIVATED CMS AND WATER SHUTOFF VALVE OPENED.