Overshoot altitude on descent. Late level off clearance.

Attributes
ACN	305190
Time
Date	199505
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : irq
State Reference	SC
Altitude	msl bound lower : 24700 msl bound upper : 25000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
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 : 180 flight time total : 15000
ASRS Report	305190
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : overshoot 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:

We were cleared to cross irq at FL240. We set up a VNAV descent. VNAV dscnts are power off at 2000 FPM. At approximately 25700 ft the controller amended and told us to maintain FL250. It's a big airplane and we just can't stop the descent quickly so we shot approximately 300 ft below FL250. We advised controller who stated, 'no problem!'

Original NASA ASRS Text

Title: OVERSHOOT ALT ON DSCNT. LATE LEVEL OFF CLRNC.

Narrative: WE WERE CLRED TO CROSS IRQ AT FL240. WE SET UP A VNAV DSCNT. VNAV DSCNTS ARE PWR OFF AT 2000 FPM. AT APPROX 25700 FT THE CTLR AMENDED AND TOLD US TO MAINTAIN FL250. IT'S A BIG AIRPLANE AND WE JUST CAN'T STOP THE DSCNT QUICKLY SO WE SHOT APPROX 300 FT BELOW FL250. WE ADVISED CTLR WHO STATED, 'NO PROB!'

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.