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A B737-300 was dispatched in non compliance with the aft lavatory deferred. Special procedures safety wiring the fill valve were not accomplished.
| Attributes | |
| ACN | 451685 |
| Time | |
| Date | 199910 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 20000 flight time type : 16500 |
| ASRS Report | 451685 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 5000 flight time type : 2000 |
| ASRS Report | 451691 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance maintenance problem : non compliance with mel non adherence : published procedure |
| Independent Detector | other other : 4 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Maintenance Human Performance Company Aircraft Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
On pushback at ZZZ (air carrier flight xyz) lavatory solution was leaking onto rear lavatory floor and galley area. Returned to gate. Lavatory was dumped and blocked off. Dispatch and maintenance duty control were called. MEL procedure for release and logbook was accomplished. Maintenance stated ok to fly airplane and maintenance in abc would 'put the safety wire on.' I asked again was it ok to fly the plane to XXX. Maintenance said yes and dispatch agreed. The most important thing to me was that the lavatory was emptied and the door blocked off. We departed ZZZ for XXX. En route, I read the MEL. It stated the crew and ramp were required to safety wire certain parts of the lavatory depending upon what was wrong with it. I don't know if it was done by ramp personnel, but the crew did not. I think the MEL needs to be rewritten so as not to be so ambiguous.
Original NASA ASRS Text
Title: A B737-300 WAS DISPATCHED IN NON COMPLIANCE WITH THE AFT LAVATORY DEFERRED. SPECIAL PROCS SAFETY WIRING THE FILL VALVE WERE NOT ACCOMPLISHED.
Narrative: ON PUSHBACK AT ZZZ (ACR FLT XYZ) LAVATORY SOLUTION WAS LEAKING ONTO REAR LAVATORY FLOOR AND GALLEY AREA. RETURNED TO GATE. LAVATORY WAS DUMPED AND BLOCKED OFF. DISPATCH AND MAINT DUTY CTL WERE CALLED. MEL PROC FOR RELEASE AND LOGBOOK WAS ACCOMPLISHED. MAINT STATED OK TO FLY AIRPLANE AND MAINT IN ABC WOULD 'PUT THE SAFETY WIRE ON.' I ASKED AGAIN WAS IT OK TO FLY THE PLANE TO XXX. MAINT SAID YES AND DISPATCH AGREED. THE MOST IMPORTANT THING TO ME WAS THAT THE LAVATORY WAS EMPTIED AND THE DOOR BLOCKED OFF. WE DEPARTED ZZZ FOR XXX. ENRTE, I READ THE MEL. IT STATED THE CREW AND RAMP WERE REQUIRED TO SAFETY WIRE CERTAIN PARTS OF THE LAVATORY DEPENDING UPON WHAT WAS WRONG WITH IT. I DON'T KNOW IF IT WAS DONE BY RAMP PERSONNEL, BUT THE CREW DID NOT. I THINK THE MEL NEEDS TO BE REWRITTEN SO AS NOT TO BE SO AMBIGUOUS.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.