CE560 crew descending on the coatt 4 arrival to hef does not quite make crossing restr.

Attributes
ACN	708608
Time
Date	200608
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : hef.airport
State Reference	VA
Altitude	msl single value : 11000
Environment
Flight Conditions	Mixed
Weather Elements	Turbulence
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc.artcc
Operator	general aviation : corporate
Make Model Name	Citation V
Navigation In Use	other
Route In Use	arrival star : coatt 4
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 100 flight time total : 8000 flight time type : 400
ASRS Report	708608
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : multi engine pilot : atp pilot : commercial
Experience	flight time last 90 days : 120 flight time total : 14000 flight time type : 400
ASRS Report	707440
Events
Anomaly	altitude deviation : crossing restriction not met non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : insufficient time
Supplementary
Problem Areas	Aircraft Airspace Structure Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

We were descending on the coatt 4 arrival for the hef airport. ZDC issued a crossing restr of 'cross falko at 10000 ft 250 KTS.' as a crew; this restr was added into the vertical navigation for a 2200 FPM descent. Once reaching our top of descent point; the plane began a descent for falko at 10000 ft 250 KTS. Descending through FL190 we as a crew began the descent/approach checklist. We expected the visual approach to runway 34R at hef; so the visual approach was loaded (RNAV runway 34R hef). Once approach was entered; the FMS disconnected the VNAV and removed falko from our route page. Noticing this; we re-entered falko and the erased routing; selected vertical speed manually which now required a 4500 FPM descent and flight idle to meet the crossing restr. It appeared we were not going to meet falko at 10000 ft. Before we could advise ATC; the controller said 'aircraft X you were supposed to cross falko at 10000 ft.' we advised ATC we were 'out of 11000 ft' with approximately 4 SM to go. For future reference; limiting the use of the VNAV system to the en route portion of flight; along with selecting v-spd for transitioning; will eliminate this problem from occurring again.

Original NASA ASRS Text

Title: CE560 CREW DSNDING ON THE COATT 4 ARR TO HEF DOES NOT QUITE MAKE XING RESTR.

Narrative: WE WERE DSNDING ON THE COATT 4 ARR FOR THE HEF ARPT. ZDC ISSUED A XING RESTR OF 'CROSS FALKO AT 10000 FT 250 KTS.' AS A CREW; THIS RESTR WAS ADDED INTO THE VERT NAV FOR A 2200 FPM DSCNT. ONCE REACHING OUR TOP OF DSCNT POINT; THE PLANE BEGAN A DSCNT FOR FALKO AT 10000 FT 250 KTS. DSNDING THROUGH FL190 WE AS A CREW BEGAN THE DSCNT/APCH CHKLIST. WE EXPECTED THE VISUAL APCH TO RWY 34R AT HEF; SO THE VISUAL APCH WAS LOADED (RNAV RWY 34R HEF). ONCE APCH WAS ENTERED; THE FMS DISCONNECTED THE VNAV AND REMOVED FALKO FROM OUR RTE PAGE. NOTICING THIS; WE RE-ENTERED FALKO AND THE ERASED ROUTING; SELECTED VERT SPD MANUALLY WHICH NOW REQUIRED A 4500 FPM DSCNT AND FLT IDLE TO MEET THE XING RESTR. IT APPEARED WE WERE NOT GOING TO MEET FALKO AT 10000 FT. BEFORE WE COULD ADVISE ATC; THE CTLR SAID 'ACFT X YOU WERE SUPPOSED TO CROSS FALKO AT 10000 FT.' WE ADVISED ATC WE WERE 'OUT OF 11000 FT' WITH APPROX 4 SM TO GO. FOR FUTURE REF; LIMITING THE USE OF THE VNAV SYS TO THE ENRTE PORTION OF FLT; ALONG WITH SELECTING V-SPD FOR TRANSITIONING; WILL ELIMINATE THIS PROB FROM OCCURRING AGAIN.

Data retrieved from NASA's ASRS site as of January 2009 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.