A bd-700's honeywell primus 2000 FMS missed the teb jaike 13;000 ft constraint as the aircraft slowe...

Attributes
ACN	1015526
Time
Date	201206
Local Time Of Day	1201-1800
Place
Locale Reference	TEB.Airport
State Reference	NJ
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Global Express (BD700)
Operating Under FAR Part	Part 91
Flight Phase	Descent
Route In Use	STAR JAIKE 3
Flight Plan	IFR
Component
Aircraft Component	FMS/FMC
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 50 Flight Crew Total 3300 Flight Crew Type 700
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Altitude Crossing Restriction Not Met Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy

Narrative:

On the jaike 3 RNAV arrival into teb; we were told to cross jaike at 13;000 ft as depicted on the STAR. Left our assigned altitude of FL190; inputted direct to the 13;000 ft on the FMS and set VNAV to allow the autopilot to descend. 4 miles from jaike; we noticed we were still high (about 2;000 ft) and then increased our descent rate to make the crossing restricting. Approximately one mile later our FMS sequenced to the next waypoint ilene and then the controller asked to increase our descent rate which I acknowledge. Soon after; the controller handed us off to the next sector. Careful watch over the FMS computer would have prevented us from having to hurry up and increase our rate of descent. The computer calculations from the FMS were off and it would have had us approximately 1;000 ft high at the location of jaike if we didn't turn off VNAV and go into vs. The controller may have seen we were not going to cross at 13;000 ft and that is why they asked us to increase our rate of descent.

Original NASA ASRS Text

Title: A BD-700's Honeywell Primus 2000 FMS missed the TEB JAIKE 13;000 FT constraint as the aircraft slowed to 250 KTS and was apparently descending and slowing so as to comply with ILENE; the next 13;000 FT constraint.

Narrative: On the JAIKE 3 RNAV arrival into TEB; we were told to cross JAIKE at 13;000 FT as depicted on the STAR. Left our assigned altitude of FL190; inputted direct to the 13;000 FT on the FMS and set VNAV to allow the autopilot to descend. 4 miles from JAIKE; we noticed we were still high (about 2;000 FT) and then increased our descent rate to make the crossing restricting. Approximately one mile later our FMS sequenced to the next waypoint ILENE and then the Controller asked to increase our descent rate which I acknowledge. Soon after; the Controller handed us off to the next sector. Careful watch over the FMS computer would have prevented us from having to hurry up and increase our rate of descent. The computer calculations from the FMS were off and it would have had us approximately 1;000 FT high at the location of JAIKE if we didn't turn off VNAV and go into VS. The Controller may have seen we were not going to cross at 13;000 FT and that is why they asked us to increase our rate of descent.

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.

A bd-700's honeywell primus 2000 FMS missed the teb jaike 13;000 ft constraint as the aircraft slowed to 250 KTS and was apparently descending and slowing so as to comply with ilene; the next 13;000 ft constraint.