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A canadair CL65 was dispatched in non compliance with #1 generator deferred as inoperative per the MEL, but time limits for corrective action was incorrectly entered.
| Attributes | |
| ACN | 489360 |
| Time | |
| Date | 200010 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65, Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : pushback ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : cfi pilot : atp pilot : multi engine |
| Experience | flight time last 90 days : 65 flight time total : 3800 flight time type : 1400 |
| ASRS Report | 489360 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure |
| Independent Detector | other flight crewb |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : logbook entry performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication Flight Crew Human Performance Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
| Situations | |
| Publication | MINIMUM EQUIPMENT LIST |
Narrative:
Aircraft had #1 generator deferred. The deferral was listed as a CAT B item 72 hours. This is correct if just the generator is deferred. Upon further investigation determined that the constant speed drive was disconnected. The constant speed drive is under the same deferral MEL number however it is a CAT a item (20 flight hours). The maintenance controller made improper deferral. This is a very common problem at our airline. Unfortunately we did not determine this until after takeoff. Arriving back in cvg maintenance corrected.
Original NASA ASRS Text
Title: A CANADAIR CL65 WAS DISPATCHED IN NON COMPLIANCE WITH #1 GENERATOR DEFERRED AS INOP PER THE MEL, BUT TIME LIMITS FOR CORRECTIVE ACTION WAS INCORRECTLY ENTERED.
Narrative: ACFT HAD #1 GENERATOR DEFERRED. THE DEFERRAL WAS LISTED AS A CAT B ITEM 72 HRS. THIS IS CORRECT IF JUST THE GENERATOR IS DEFERRED. UPON FURTHER INVESTIGATION DETERMINED THAT THE CONSTANT SPD DRIVE WAS DISCONNECTED. THE CONSTANT SPD DRIVE IS UNDER THE SAME DEFERRAL MEL NUMBER HOWEVER IT IS A CAT A ITEM (20 FLT HRS). THE MAINT CTLR MADE IMPROPER DEFERRAL. THIS IS A VERY COMMON PROB AT OUR AIRLINE. UNFORTUNATELY WE DID NOT DETERMINE THIS UNTIL AFTER TKOF. ARRIVING BACK IN CVG MAINT CORRECTED.
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.