Regional Jet 700 ER/LR (CRJ700)
Flight Crew Air Transport Pilot (ATP)
Confusion; Troubleshooting
Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural FAR; Inflight Event / Encounter Fuel Issue
General None Reported / Taken
Aircraft; Company Policy; Procedure
Flight to [ZZZ1] just after takeoff center advises they require 30 miles in trail to [ZZZ1]. They began radar vectors and slowed to 290 kts. 670 miles from [ZZZ1]. [ZZZ1] was VFR and landing expressway visual 31. They continued to climb us but had us slow to .77. This continued and we were slowed to 180 kts on the arrival. Total fuel was 9;496 lbs.; enroute burn 5;226 lbs. min to was 9;122 lbs. We flew the flight plan as closely as possible. We arrived at the gate with 2;200 lbs. our enroute burn was 7;570 lbs. Reserve fuel was 2;271 lbs.Dispatch fuel planning. Company enroute fuel burns are not accurate! Company needs do an audit on the enroute fuel burns system wide.
The flight plan said we should have landed with 3;900 lbs. That was a 1;700 lb. difference. We flew the flight plan as close as possible to the profile. The delaying vectors may have contributed to a greater fuel burn than may have been expected but not a 1;700 lb. difference. The fuel burn numbers may be incorrect or the historical data may also be incorrect. Perhaps the dispatch department needs to review the fuel burns and historical data for all flights.
A CRJ-700 was dispatched with a planned landing fuel of 3;900 lbs. With delay vectors enroute; the flight landed with 2;200 lbs which was less than expected even with delays. The crew questioned the company planned fuel burn number.