Narrative:

Air carrier flight eddf to kdtw, was dispatched incorrectly. The flight was conducted by a B757 (extended twin certified). At the time of the flight, one of the FMC's was known to be inoperative. With an FMC inoperative, the aircraft is restr to the contingency rtes in north atlantic mnps airspace. This restr was known many hours in advance of the flight. I briefed the dispatcher for the flight that the flight needs to be planned on the north atlantic contingency route since only 1 FMC was available for navigation. The flight departed before I realized it was not planned on a contingency route. I advised the dispatcher of the mistake, but failed to ensure that he phone patch the aircraft and revise the route. The dispatcher felt that since the aircraft was planned within 60 mins of a suitable airport (far 121.161) he did not need to revise it. The dispatcher was given remedial north atlantic training. I will follow special operations flts and restrictive flts closely. Also, I will not assume a dispatcher fully understands restrictive items without giving a thorough briefing.

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Original NASA ASRS Text

Title: B757 EDDF TO KDTW, HAD FMC INOP. REGS REQUIRE ROUTING OVER CONTINGENCY RTES IN THE NORTH ATLANTIC MNPS AIRSPACE. FLT WAS PLANNED OVER NORMAL ROUTING. DISPATCHER FELT SINCE PLANNED ROUTING WAS WITHIN 60 MINS OF A SUITABLE ARPT HE DID NOT NEED TO REVISE IT. ACFT FLC WAS NOT INFORMED OF THE ERROR. DISPATCHER GIVEN REMEDIAL TRAINING.

Narrative: ACR FLT EDDF TO KDTW, WAS DISPATCHED INCORRECTLY. THE FLT WAS CONDUCTED BY A B757 (EXTENDED TWIN CERTIFIED). AT THE TIME OF THE FLT, ONE OF THE FMC'S WAS KNOWN TO BE INOP. WITH AN FMC INOP, THE ACFT IS RESTR TO THE CONTINGENCY RTES IN NORTH ATLANTIC MNPS AIRSPACE. THIS RESTR WAS KNOWN MANY HRS IN ADVANCE OF THE FLT. I BRIEFED THE DISPATCHER FOR THE FLT THAT THE FLT NEEDS TO BE PLANNED ON THE NORTH ATLANTIC CONTINGENCY RTE SINCE ONLY 1 FMC WAS AVAILABLE FOR NAV. THE FLT DEPARTED BEFORE I REALIZED IT WAS NOT PLANNED ON A CONTINGENCY RTE. I ADVISED THE DISPATCHER OF THE MISTAKE, BUT FAILED TO ENSURE THAT HE PHONE PATCH THE ACFT AND REVISE THE RTE. THE DISPATCHER FELT THAT SINCE THE ACFT WAS PLANNED WITHIN 60 MINS OF A SUITABLE ARPT (FAR 121.161) HE DID NOT NEED TO REVISE IT. THE DISPATCHER WAS GIVEN REMEDIAL NORTH ATLANTIC TRAINING. I WILL FOLLOW SPECIAL OPS FLTS AND RESTRICTIVE FLTS CLOSELY. ALSO, I WILL NOT ASSUME A DISPATCHER FULLY UNDERSTANDS RESTRICTIVE ITEMS WITHOUT GIVING A THOROUGH BRIEFING.

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.