The downloaded flight plan dropped out of a falcon 900EX honeywell nz-2000 FMS after takeoff even th...

Narrative:

I downloaded our flight plan into the FMS using an uplink service provider. The clearance was different and I entered the changes manually into the FMS. After a departure on 27L; we were radar vectored right turn to 360 then 090. After a few minutes we were cleared on course. We then commanded direct to the next fix in the FMS. It was then noticed by ATC and ourselves that we were proceeding not as cleared but as filed. After reviewing the FMS it became clear that the changes to the flight plan dropped out and the plan reverted to the downloaded flight plan. I am 100% sure we made the changes to the FMS from filed to cleared. We did not change a runway in the FMS that would have caused on a SID to drop out and we were not cleared a SID. On the prior leg the entire flight plan dropped out of the box on the ground prior to departure which was unusual. I have extensive experience with the nz-2000 in the citation X and the falcon combined and am aware of the usual pitfalls and these do not seem to fit into what I would normally expect. Multiple flight crews are noticing that the honeywell FMS is getting a little more glitchy as more and more features are added.

Original NASA ASRS Text

Title: The downloaded flight plan dropped out of a Falcon 900EX Honeywell NZ-2000 FMS after takeoff even though the crew manually entered a revised flight plan was and verified it after entry at the gate.

Narrative: I downloaded our flight plan into the FMS using an uplink service provider. The clearance was different and I entered the changes manually into the FMS. After a departure on 27L; we were radar vectored right turn to 360 then 090. After a few minutes we were cleared on course. We then commanded direct to the next fix in the FMS. It was then noticed by ATC and ourselves that we were proceeding not as cleared but as filed. After reviewing the FMS it became clear that the changes to the flight plan dropped out and the plan reverted to the downloaded flight plan. I am 100% sure we made the changes to the FMS from filed to cleared. We did not change a runway in the FMS that would have caused on a SID to drop out and we were not cleared a SID. On the prior leg the entire flight plan dropped out of the box on the ground prior to departure which was unusual. I have extensive experience with the NZ-2000 in the Citation X and the Falcon combined and am aware of the usual pitfalls and these do not seem to fit into what I would normally expect. Multiple flight crews are noticing that the Honeywell FMS is getting a little more glitchy as more and more features are added.

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.

Attributes
ACN	1073350
Time
Date	201303
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Make Model Name	Falcon 900
Operating Under FAR Part	Part 91
Flight Phase	Climb
Route In Use	Vectors
Flight Plan	IFR
Component
Aircraft Component	FMS/FMC
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Experience	Flight Crew Last 90 Days 50 Flight Crew Total 6000 Flight Crew Type 500
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance Deviation - Track / Heading All Types

The downloaded flight plan dropped out of a falcon 900EX honeywell nz-2000 FMS after takeoff even though the crew manually entered a revised flight plan was and verified it after entry at the gate.