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A DC9-30 was dispatched in non compliance with the yaw damper deferred as inoperative per the MEL but dispatch was not advised.
| Attributes | |
| ACN | 461760 |
| Time | |
| Date | 200001 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| 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 | DC-9 30 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 11000 flight time type : 300 |
| ASRS Report | 461760 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 12000 flight time type : 2000 |
| ASRS Report | 461981 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : non compliance with mel non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : yaw damper off light other flight crewa other flight crewb |
| Resolutory Action | none taken : anomaly accepted |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : non compliance with legal requirements performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Flight Crew Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Crew accepted aircraft with an open write-up (maintenance discrepancy) 'yaw damper inoperative.' crew advised company maintenance of problem and it was properly reviewed and placed on the MEL list. Crew followed proper MEL procedure but failed to ensure that the MEL was placed on the dispatch release prior to departure. Approximately 20 mins into flight, crew realized mistake and promptly informed dispatch. Dispatch acknowledged through ACARS.
Original NASA ASRS Text
Title: A DC9-30 WAS DISPATCHED IN NON COMPLIANCE WITH THE YAW DAMPER DEFERRED AS INOP PER THE MEL BUT DISPATCH WAS NOT ADVISED.
Narrative: CREW ACCEPTED ACFT WITH AN OPEN WRITE-UP (MAINT DISCREPANCY) 'YAW DAMPER INOP.' CREW ADVISED COMPANY MAINT OF PROB AND IT WAS PROPERLY REVIEWED AND PLACED ON THE MEL LIST. CREW FOLLOWED PROPER MEL PROC BUT FAILED TO ENSURE THAT THE MEL WAS PLACED ON THE DISPATCH RELEASE PRIOR TO DEP. APPROX 20 MINS INTO FLT, CREW REALIZED MISTAKE AND PROMPTLY INFORMED DISPATCH. DISPATCH ACKNOWLEDGED THROUGH ACARS.
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.