An F100 crew overshot assigned leveloff altitude.

Attributes
ACN	512669
Time
Date	200105
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : hnk.vor
State Reference	NY
Altitude	msl bound lower : 27000 msl bound upper : 33000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zbw.artcc
Operator	common carrier : air carrier
Make Model Name	Fokker 100
Operating Under FAR Part	Part 121
Flight Phase	cruise : enroute altitude change
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	512669
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Center requested an expeditious descent from FL330 to FL280. PF used level change, speed brake and idle power. This confign resulted in a decreasing speed and rapidly developing sink rate. At approximately FL300 the PF disconnected the autoplt and encountered unanticipated nose down pitch forces which delayed the leveloff until about 500 ft below the assigned altitude. The ZBW controller subsequently assigned a descent to FL270.

Original NASA ASRS Text

Title: AN F100 CREW OVERSHOT ASSIGNED LEVELOFF ALT.

Narrative: CTR REQUESTED AN EXPEDITIOUS DSCNT FROM FL330 TO FL280. PF USED LEVEL CHANGE, SPD BRAKE AND IDLE PWR. THIS CONFIGN RESULTED IN A DECREASING SPD AND RAPIDLY DEVELOPING SINK RATE. AT APPROX FL300 THE PF DISCONNECTED THE AUTOPLT AND ENCOUNTERED UNANTICIPATED NOSE DOWN PITCH FORCES WHICH DELAYED THE LEVELOFF UNTIL ABOUT 500 FT BELOW THE ASSIGNED ALT. THE ZBW CTLR SUBSEQUENTLY ASSIGNED A DSCNT TO FL270.

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.