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Dispatcher for a B727-200 learned next day that he had dispatched aircraft on a route structure requiring RNAV capability for which the aircraft was not equipped.
| Attributes | |
| ACN | 458274 |
| Time | |
| Date | 199912 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| State Reference | CO |
| Altitude | msl single value : 31000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Route In Use | enroute other |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel |
| Qualification | other pilot : commercial pilot : instrument |
| ASRS Report | 458274 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : clearance other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : vor/ome other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
B727 was dispatched on route that contained an RNAV portion onl direct dbl. Aircraft was not RNAV equipped. Original equipment was B757 RNAV equipped. Preliminary work-up selected an RNAV route for best burn and time en route. Aircraft change was done to the B727. Computer does not flag or block out RNAV rtes -- which are stored in a separate computer file. Flight crew apparently accepted the flight plan, as I did not hear from them prior to departure or en route. I was not on duty through the RNAV portion of the route. I was advised of the discrepancy by chief dispatcher on my next duty day. Corrective action: 1) dispatcher/flight crew vigilance to compare flight plan route with navigation capability of aircraft -- prior to departure. 2) computer be programmed to flag rtes that are not compatible with aircraft navigation capabilities. 3) dispatch sectors at XXX are divided into short haul/long haul flts. This flight is on a long haul sector. These long haul desks can have up to 20 flts in the air at one time while the dispatcher continues to work up new flts. Anything less than optimum VFR creates workload issues. Long haul flts have increased, and it would be safer from a workload standpoint to divide out some of the long haul flts to other desks.
Original NASA ASRS Text
Title: DISPATCHER FOR A B727-200 LEARNED NEXT DAY THAT HE HAD DISPATCHED ACFT ON A RTE STRUCTURE REQUIRING RNAV CAPABILITY FOR WHICH THE ACFT WAS NOT EQUIPPED.
Narrative: B727 WAS DISPATCHED ON RTE THAT CONTAINED AN RNAV PORTION ONL DIRECT DBL. ACFT WAS NOT RNAV EQUIPPED. ORIGINAL EQUIP WAS B757 RNAV EQUIPPED. PRELIMINARY WORK-UP SELECTED AN RNAV RTE FOR BEST BURN AND TIME ENRTE. ACFT CHANGE WAS DONE TO THE B727. COMPUTER DOES NOT FLAG OR BLOCK OUT RNAV RTES -- WHICH ARE STORED IN A SEPARATE COMPUTER FILE. FLC APPARENTLY ACCEPTED THE FLT PLAN, AS I DID NOT HEAR FROM THEM PRIOR TO DEP OR ENRTE. I WAS NOT ON DUTY THROUGH THE RNAV PORTION OF THE RTE. I WAS ADVISED OF THE DISCREPANCY BY CHIEF DISPATCHER ON MY NEXT DUTY DAY. CORRECTIVE ACTION: 1) DISPATCHER/FLC VIGILANCE TO COMPARE FLT PLAN RTE WITH NAV CAPABILITY OF ACFT -- PRIOR TO DEP. 2) COMPUTER BE PROGRAMMED TO FLAG RTES THAT ARE NOT COMPATIBLE WITH ACFT NAV CAPABILITIES. 3) DISPATCH SECTORS AT XXX ARE DIVIDED INTO SHORT HAUL/LONG HAUL FLTS. THIS FLT IS ON A LONG HAUL SECTOR. THESE LONG HAUL DESKS CAN HAVE UP TO 20 FLTS IN THE AIR AT ONE TIME WHILE THE DISPATCHER CONTINUES TO WORK UP NEW FLTS. ANYTHING LESS THAN OPTIMUM VFR CREATES WORKLOAD ISSUES. LONG HAUL FLTS HAVE INCREASED, AND IT WOULD BE SAFER FROM A WORKLOAD STANDPOINT TO DIVIDE OUT SOME OF THE LONG HAUL FLTS TO OTHER DESKS.
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.