Service difficulty report · Lavatory · Boeing 777224

Difficulty date
November 18, 2025
Submitted
November 20, 2025
Operation
Air carrier
Aircraft
N78008
Make and model
Boeing 777224
Aircraft serial
29478
Aircraft time
122,761 hours, 12,705 cycles
Part
Lavatory
Condition
Faulted
Location
Zone 100
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

ALL A/C LEFT LAVS INCLUDING 3L CENTER LAVS STOPPED WORKING FOUND ALL LAVS ON LEFT SIDE, INCLUDING 3L CENTER LAVS TO BE OPERATING NORMALLY. FOUND LAV H CLOGGED WITH LARGE AMOUNTS OF PAPER TOWELS AND TOLIET PAPER JAMMED IN TOLIET BOWL. REMOVED AND CLEARED CLOG. LAV H OPERATES NORMALLY. REF AMM 38-32-00. FLUSHED ADD EMP:U092712 ALL LAVS WITH CRUSHED ICE AND VINEGAR. WAITING ON LAV SERVICE FOR PRECHARGE AND FINAL OPS CHECKS OF TANK INDS. ACCOMPLISHED AA AUTO ZERO - ADJUSTMENT TASK 38-33-00-710-801. ALSO ACCOMPLISHED THE LCM BITE OPS TEST, TASK 38-33-00-740-801. BOTH TEST PASSED ON ALL 3 TANKS. ALL TANKS SHOWING EMPTY. AFTER ICE & VINAGER, TANKS NR 1 , 3 ALL SHOW ONE GREEN BAR, AND TANK NR 2 HAS NO BARS. AWAITING LAV SERVICE. CMS WASTE TANK QTY INDICATION- OPS TEST TASK 38-33-00-710-802 TEST PASSED. VERIFIED ALL A/CS LEFT LAVS INCLUDING 3L CENTER OPERATE NORMALLY REF AMM 38-32-00-700-802.