Captain of a lear 25D became distraction and failed to descend to the assigned crossing altitude. This resulted in ATC intervention, who gave vectors for maintaining appropriate separation with other traffic.

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Attributes
ACN	350970
Time
Date	199610
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : mol
State Reference	VA
Altitude	msl bound lower : 24000 msl bound upper : 29000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zdc
Operator	general aviation : corporate
Make Model Name	Learjet 25
Operating Under FAR Part	Part 91
Flight Phase	descent other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 18000 flight time type : 1000
ASRS Report	350970
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance
Independent Detector	other controllera
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Clearance issued 'cross 15 mi west of mol VOR at FL240.' due to distraction, aircraft crossed 15 mi west of mol at FL290. ATC issued airspace separation vectors. No traffic conflict. I was distraction due to explaining checklist matters to first officer on first flight. When ATC queried about restr, I realized we were not going to make it. Tried to advise ATC, but due to frequency congestion could not raise ATC.

Original NASA ASRS Text

Title: CAPT OF A LEAR 25D BECAME DISTR AND FAILED TO DSND TO THE ASSIGNED XING ALT. THIS RESULTED IN ATC INTERVENTION, WHO GAVE VECTORS FOR MAINTAINING APPROPRIATE SEPARATION WITH OTHER TFC.

Narrative: CLRNC ISSUED 'CROSS 15 MI W OF MOL VOR AT FL240.' DUE TO DISTR, ACFT CROSSED 15 MI W OF MOL AT FL290. ATC ISSUED AIRSPACE SEPARATION VECTORS. NO TFC CONFLICT. I WAS DISTR DUE TO EXPLAINING CHKLIST MATTERS TO FO ON FIRST FLT. WHEN ATC QUERIED ABOUT RESTR, I REALIZED WE WERE NOT GOING TO MAKE IT. TRIED TO ADVISE ATC, BUT DUE TO FREQ CONGESTION COULD NOT RAISE ATC.

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.