Narrative:

We operated the flight with the landing gear retraction system deferred (gear pinned down). The fuel numbers on the release/computer flight plan accounted for the additional fuel as a result of the gear being down; and we had approximately 900 lbs extra fuel (we would have taken more but we were bumping payload as is). It was apparent at top of climb that the fuel numbers were not at all accurate for our flight conditions. We reached TOC (we were cleared direct off our route at that point); which was about 50 nm past the point in which the computer flight plan had calculated TOC. I do not believe we leveled off at any point in the climb. At TOC we were -600 lbs on fuel [burn schedule]. The dispatcher and I communicated over several waypoints although it never got bad enough to divert. Since we were cleared direct an intermediate fix (with a tailwind pushing us) we made up some of the fuel; but then started to fall behind again once we were back on our route. We landed about -400 lbs; and that was only because we did not have to fly the full downwind as depicted on the arrival. The threats were inadequate fuel for the flight and incorrect flight planning. The flight control planning system should be audited; or at least adjusted for the slower climb with the gear down.

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Original NASA ASRS Text

Title: A CRJ200 was flown on a revenue flight with the landing gear pinned down and an error in the flight planning software assigned too little fuel so that the aircraft landed with 400 pounds less than predicted.

Narrative: We operated the flight with the landing gear retraction system deferred (gear pinned down). The fuel numbers on the release/computer flight plan accounted for the additional fuel as a result of the gear being down; and we had approximately 900 lbs extra fuel (we would have taken more but we were bumping payload as is). It was apparent at top of climb that the fuel numbers were not at all accurate for our flight conditions. We reached TOC (we were cleared direct off our route at that point); which was about 50 nm past the point in which the computer flight plan had calculated TOC. I do not believe we leveled off at any point in the climb. At TOC we were -600 lbs on fuel [burn schedule]. The dispatcher and I communicated over several waypoints although it never got bad enough to divert. Since we were cleared direct an intermediate fix (with a tailwind pushing us) we made up some of the fuel; but then started to fall behind again once we were back on our route. We landed about -400 lbs; and that was only because we did not have to fly the full downwind as depicted on the arrival. The threats were inadequate fuel for the flight and incorrect flight planning. The flight control planning system should be audited; or at least adjusted for the slower climb with the gear down.

Data retrieved from NASA's ASRS site as of April 2012 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.