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An MD80 was dispatched in non compliance with water waste drain valve repaired but not leak tested per the maintenance manual requirement.
| Attributes | |
| ACN | 493243 |
| Time | |
| Date | 200011 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 493243 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Qualification | technician : airframe technician : powerplant |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Independent Detector | other other : person 1 |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : installation performance deficiency : inspection performance deficiency : logbook entry performance deficiency : testing |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
During overnight maintenance on aircraft xyz the aft waste drain inner flap would not open when the release was pressed. The inner flap was replaced on the aft waste drain valve. It is unclr to me whether the maintenance manual allows a part of the valve assembly to be removed and replaced. MD80 maintenance manual 38-30-04-2 204A requires a leak check after the valve is removed and replaced. No leak check was performed after the inner flap was removed and replaced.
Original NASA ASRS Text
Title: AN MD80 WAS DISPATCHED IN NON COMPLIANCE WITH WATER WASTE DRAIN VALVE REPAIRED BUT NOT LEAK TESTED PER THE MAINT MANUAL REQUIREMENT.
Narrative: DURING OVERNIGHT MAINT ON ACFT XYZ THE AFT WASTE DRAIN INNER FLAP WOULD NOT OPEN WHEN THE RELEASE WAS PRESSED. THE INNER FLAP WAS REPLACED ON THE AFT WASTE DRAIN VALVE. IT IS UNCLR TO ME WHETHER THE MAINT MANUAL ALLOWS A PART OF THE VALVE ASSEMBLY TO BE REMOVED AND REPLACED. MD80 MAINT MANUAL 38-30-04-2 204A REQUIRES A LEAK CHK AFTER THE VALVE IS REMOVED AND REPLACED. NO LEAK CHK WAS PERFORMED AFTER THE INNER FLAP WAS REMOVED AND REPLACED.
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.