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A dispatcher reports difficulty figuring a fuel load for a CL65 being maintenance ferried for missing landing gear doors. Dispatcher did not have a copy of cdl.
| Attributes | |
| ACN | 644466 |
| Time | |
| Date | 200501 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel |
| ASRS Report | 644466 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : non compliance with mel maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : manuals contributing factor : schedule pressure contributing factor : engineering procedure performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication Company Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
| Situations | |
| Publication | Configuration Deviation List |
Narrative:
We now have the possibility of MEL landing gear retraction system deferral concurrent with discrepancy log main landing gear door(south) missing. Both have several penalties; including performance; speed; altitude; and increased fuel burn. This was the case when I had ferry flight in january. Dispatch; maintenance and crj fleet manager gave me the technical support to operate this ferry to ZZZ1 for maintenance. With their concurrence; I determined that the best method was to use the most conservative of the restrs; then added both increases in fuel burns to the total fuel required. The way I planned this flight was more than likely much more conservative with more fuel than necessary. However; with the absence of the correct way to combine penalties for multiple items missing on the same system; I did not see a safer way. In retrospect; I believe that written guidance and procedures should be obtained from the manufacturer or engineering as to the proper penalties to apply for revenue or ferry flight in this situation.
Original NASA ASRS Text
Title: A DISPATCHER RPTS DIFFICULTY FIGURING A FUEL LOAD FOR A CL65 BEING MAINT FERRIED FOR MISSING LNDG GEAR DOORS. DISPATCHER DID NOT HAVE A COPY OF CDL.
Narrative: WE NOW HAVE THE POSSIBILITY OF MEL LNDG GEAR RETRACTION SYS DEFERRAL CONCURRENT WITH DISCREPANCY LOG MAIN LNDG GEAR DOOR(S) MISSING. BOTH HAVE SEVERAL PENALTIES; INCLUDING PERFORMANCE; SPD; ALT; AND INCREASED FUEL BURN. THIS WAS THE CASE WHEN I HAD FERRY FLT IN JANUARY. DISPATCH; MAINT AND CRJ FLEET MGR GAVE ME THE TECHNICAL SUPPORT TO OPERATE THIS FERRY TO ZZZ1 FOR MAINT. WITH THEIR CONCURRENCE; I DETERMINED THAT THE BEST METHOD WAS TO USE THE MOST CONSERVATIVE OF THE RESTRS; THEN ADDED BOTH INCREASES IN FUEL BURNS TO THE TOTAL FUEL REQUIRED. THE WAY I PLANNED THIS FLT WAS MORE THAN LIKELY MUCH MORE CONSERVATIVE WITH MORE FUEL THAN NECESSARY. HOWEVER; WITH THE ABSENCE OF THE CORRECT WAY TO COMBINE PENALTIES FOR MULTIPLE ITEMS MISSING ON THE SAME SYS; I DID NOT SEE A SAFER WAY. IN RETROSPECT; I BELIEVE THAT WRITTEN GUIDANCE AND PROCS SHOULD BE OBTAINED FROM THE MANUFACTURER OR ENGINEERING AS TO THE PROPER PENALTIES TO APPLY FOR REVENUE OR FERRY FLT IN THIS SIT.
Data retrieved from NASA's ASRS site as of January 2009 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.