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An air carrier flight crew flying B767 from sea to atl experiences difficulty with their FMS resulting in a track deviation.
| Attributes | |
| ACN | 443593 |
| Time | |
| Date | 199907 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : hln.vortac |
| State Reference | MN |
| Altitude | msl single value : 37000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zlc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B767-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : level |
| Route In Use | enroute airway : j45.airway |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : flight engineer pilot : atp pilot : cfi pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 100 flight time total : 17760 flight time type : 80 |
| ASRS Report | 443593 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 215 flight time total : 18600 flight time type : 560 |
| ASRS Report | 443444 |
| Events | |
| Anomaly | non adherence : clearance non adherence : far other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance controller : provided flight assist flight crew : returned to assigned airspace flight crew : returned to intended or assigned course flight crew : became reoriented flight crew : overcame equipment problem |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
During preflight, after loading the route (ksea sea J90 MLS J204 dpr J16 fsd J45 bna RMG2 katl) into the FMS, my copilot noticed that J90 was missing from the route of flight page and had been replaced by direct. He corrected the problem and we continued the departure. Shortly after takeoff while looking at the route, I noticed that J45 was now missing and had been replaced by direct. I corrected the problem and closely checked over the route to make sure it was correct. Within a short period of time, center asked if we were going direct MLS. We checked the route page again and found J90 had dropped out of the route again and was showing direct MLS. No conflict was indicated by the controller and he cleared us direct to MLS.
Original NASA ASRS Text
Title: AN ACR FLC FLYING B767 FROM SEA TO ATL EXPERIENCES DIFFICULTY WITH THEIR FMS RESULTING IN A TRACK DEV.
Narrative: DURING PREFLT, AFTER LOADING THE RTE (KSEA SEA J90 MLS J204 DPR J16 FSD J45 BNA RMG2 KATL) INTO THE FMS, MY COPLT NOTICED THAT J90 WAS MISSING FROM THE RTE OF FLT PAGE AND HAD BEEN REPLACED BY DIRECT. HE CORRECTED THE PROB AND WE CONTINUED THE DEP. SHORTLY AFTER TKOF WHILE LOOKING AT THE RTE, I NOTICED THAT J45 WAS NOW MISSING AND HAD BEEN REPLACED BY DIRECT. I CORRECTED THE PROB AND CLOSELY CHKED OVER THE RTE TO MAKE SURE IT WAS CORRECT. WITHIN A SHORT PERIOD OF TIME, CTR ASKED IF WE WERE GOING DIRECT MLS. WE CHKED THE RTE PAGE AGAIN AND FOUND J90 HAD DROPPED OUT OF THE RTE AGAIN AND WAS SHOWING DIRECT MLS. NO CONFLICT WAS INDICATED BY THE CTLR AND HE CLRED US DIRECT TO MLS.
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.