 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
After modifying the route on the route page of the FMC, it is discovered that part of the route was dropped during the clean-up procedure that should have been done on the legs page. The problem was noted when routing was questioned by ARTCC.
| Attributes | |
| ACN | 526930 |
| Time | |
| Date | 200110 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : ffu.vortac |
| State Reference | UT |
| Altitude | msl single value : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-90 Series (DC-9-90) Undifferentiated or Other Model |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 7500 flight time type : 2500 |
| ASRS Report | 526930 |
| Events | |
| Anomaly | non adherence : clearance non adherence : published procedure other spatial deviation |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While flying ffu 5 departure from slc, the FMS dropped a portion of our routing and we ended up right of course. Flight planned slc mlf J107 hec kayoh 4 sna. Cleared ffu 5 mlf as filed. During reprogramming of FMS and 'clean-up' after modifying the route page in the FMS part of the departure was dropped and we ended up going ffu direct mlf. Center asked about our routing then cleared us direct mlf. No conflict was observed or reported. I believe my mistake occurred when I performed the clean-up procedure on the route page instead of the legs page. This would cause the transition portion of the departure to be dropped from the route.
Original NASA ASRS Text
Title: AFTER MODIFYING THE RTE ON THE RTE PAGE OF THE FMC, IT IS DISCOVERED THAT PART OF THE RTE WAS DROPPED DURING THE CLEAN-UP PROC THAT SHOULD HAVE BEEN DONE ON THE LEGS PAGE. THE PROB WAS NOTED WHEN ROUTING WAS QUESTIONED BY ARTCC.
Narrative: WHILE FLYING FFU 5 DEP FROM SLC, THE FMS DROPPED A PORTION OF OUR ROUTING AND WE ENDED UP R OF COURSE. FLT PLANNED SLC MLF J107 HEC KAYOH 4 SNA. CLRED FFU 5 MLF AS FILED. DURING REPROGRAMMING OF FMS AND 'CLEAN-UP' AFTER MODIFYING THE RTE PAGE IN THE FMS PART OF THE DEP WAS DROPPED AND WE ENDED UP GOING FFU DIRECT MLF. CTR ASKED ABOUT OUR ROUTING THEN CLRED US DIRECT MLF. NO CONFLICT WAS OBSERVED OR RPTED. I BELIEVE MY MISTAKE OCCURRED WHEN I PERFORMED THE CLEAN-UP PROC ON THE RTE PAGE INSTEAD OF THE LEGS PAGE. THIS WOULD CAUSE THE TRANSITION PORTION OF THE DEP TO BE DROPPED FROM THE RTE.
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.