CL65 crew missed a descent altitude crossing restr.

Attributes
ACN	414190
Time
Date	199809
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ric
State Reference	VA
Altitude	msl bound lower : 25000 msl bound upper : 26000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc
Operator	common carrier : air carrier
Make Model Name	Challenger CL604
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 230 flight time total : 10500 flight time type : 600
ASRS Report	414190
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 88 flight time total : 10775 flight time type : 100
ASRS Report	413734
Events
Anomaly	altitude deviation : crossing restriction not met non adherence : clearance other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

ATC issued clearance to cross jaxsn intersection at FL250, while cruising at FL290. We programmed FMS for the crossing, and waited for VNAV to display profile descent. We were both distraction and did not begin descent until ATC questioned if we had actually received clearance. We immediately started down and leveled off at clearance altitude, almost 4 mi past the fix. No other comments were made by ATC. No other factors appear to be involved, crew was well rested. We simply forgot while chatting with flight attendant.

Original NASA ASRS Text

Title: CL65 CREW MISSED A DSCNT ALT XING RESTR.

Narrative: ATC ISSUED CLRNC TO CROSS JAXSN INTXN AT FL250, WHILE CRUISING AT FL290. WE PROGRAMMED FMS FOR THE XING, AND WAITED FOR VNAV TO DISPLAY PROFILE DSCNT. WE WERE BOTH DISTR AND DID NOT BEGIN DSCNT UNTIL ATC QUESTIONED IF WE HAD ACTUALLY RECEIVED CLRNC. WE IMMEDIATELY STARTED DOWN AND LEVELED OFF AT CLRNC ALT, ALMOST 4 MI PAST THE FIX. NO OTHER COMMENTS WERE MADE BY ATC. NO OTHER FACTORS APPEAR TO BE INVOLVED, CREW WAS WELL RESTED. WE SIMPLY FORGOT WHILE CHATTING WITH FLT ATTENDANT.

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.