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A CE680 pilot described the difficulty activating a honeywell primus epic FMC direct to function after several direct to function button pushs were made.
| Attributes | |
| ACN | 1122296 |
| Time | |
| Date | 201310 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Cessna Citation Sovereign (C680) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Climb |
| Route In Use | Direct |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 50 Flight Crew Total 6500 Flight Crew Type 300 |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Multiengine Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 35 Flight Crew Total 3635 Flight Crew Type 213 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Track / Heading All Types |
Narrative:
The honeywell epic is strange and difficult to understand. We were given direct to a fix. Put that fix in knowing that as the next (fly to) fix in the FMS flight plan; the FMS would not go direct even though we pressed to direct key. In this situation it draws a line between your last fix and the to fix and intercepts that line. It does not go direct to the fix you'd like. So after putting in the direct fix; we pressed direct to the new fix 3 times before the plane flew direct to the new fix.please check your database for all the problems people are having with the honeywell primus epic (C680; falcon 2000; gulfstream 450/550).
Original NASA ASRS Text
Title: A CE680 pilot described the difficulty activating a Honeywell Primus EPIC FMC DIRECT TO function after several DIRECT TO function button pushs were made.
Narrative: The Honeywell EPIC is strange and difficult to understand. We were given direct to a fix. Put that fix in knowing that as the next (fly TO) fix in the FMS flight plan; the FMS would not go direct even though we pressed to direct key. In this situation it draws a line between your last fix and the TO fix and intercepts that line. It does not go direct to the fix you'd like. So after putting in the direct fix; we pressed direct TO the new fix 3 times before the plane flew direct to the new fix.PLEASE CHECK YOUR DATABASE FOR ALL THE PROBLEMS PEOPLE ARE HAVING WITH THE HONEYWELL PRIMUS EPIC (C680; FALCON 2000; GULFSTREAM 450/550).
Data retrieved from NASA's ASRS site as of July 2013 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.