Flight crew of an mdt cpr jet failed to level at assigned descent altitude and overshot by 700 ft.

Attributes
ACN	318440
Time
Date	199510
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : cmi
State Reference	IL
Altitude	msl bound lower : 23300 msl bound upper : 24000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zau artcc : zdv
Operator	general aviation : corporate
Make Model Name	Jetstar 1329 (C140)
Operating Under FAR Part	Part 91
Navigation In Use	Other
Flight Phase	descent other
Route In Use	enroute other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : first officer
Qualification	other other : other pilot : commercial pilot : cfi pilot : atp pilot : instrument
Experience	flight time last 90 days : 40 flight time total : 7000 flight time type : 500
ASRS Report	318440
Person 2
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
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:

FL280 cleared to FL240. Captain flying. We both monitor descent. Altitude alerter went off at 1000 ft above and we both acknowledged. Callouts '500 to go,' '300 to go,' '200 to go,' 'leveling at FL240.' center called with new frequency, I PNF, answered radio call, looked down to dial new frequency, and with head lower made call to new frequency. Felt a heavy pull up, look up at altimeter and saw 23300 ft and climbing, leveled again at FL240. Center called and gave a new frequency and said nothing about altitude. New controller cleared us to FL190 and I responded 'out of FL240 for FL190.' I always watch the PF as we approach altitude. I stop other duties and monitor, that we do level at assigned altitude. I looked away only after we had leveled. Why we then continued descent I do not know. Callback conversation with reporter revealed the following information: reporter stated that he was operating a lockheed jet STAR, 1389, and had not heard from the FAA regarding any action regarding this incident.

Original NASA ASRS Text

Title: FLC OF AN MDT CPR JET FAILED TO LEVEL AT ASSIGNED DSCNT ALT AND OVERSHOT BY 700 FT.

Narrative: FL280 CLRED TO FL240. CAPT FLYING. WE BOTH MONITOR DSCNT. ALT ALERTER WENT OFF AT 1000 FT ABOVE AND WE BOTH ACKNOWLEDGED. CALLOUTS '500 TO GO,' '300 TO GO,' '200 TO GO,' 'LEVELING AT FL240.' CTR CALLED WITH NEW FREQ, I PNF, ANSWERED RADIO CALL, LOOKED DOWN TO DIAL NEW FREQ, AND WITH HEAD LOWER MADE CALL TO NEW FREQ. FELT A HVY PULL UP, LOOK UP AT ALTIMETER AND SAW 23300 FT AND CLBING, LEVELED AGAIN AT FL240. CTR CALLED AND GAVE A NEW FREQ AND SAID NOTHING ABOUT ALT. NEW CTLR CLRED US TO FL190 AND I RESPONDED 'OUT OF FL240 FOR FL190.' I ALWAYS WATCH THE PF AS WE APCH ALT. I STOP OTHER DUTIES AND MONITOR, THAT WE DO LEVEL AT ASSIGNED ALT. I LOOKED AWAY ONLY AFTER WE HAD LEVELED. WHY WE THEN CONTINUED DSCNT I DO NOT KNOW. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THAT HE WAS OPERATING A LOCKHEED JET STAR, 1389, AND HAD NOT HEARD FROM THE FAA REGARDING ANY ACTION REGARDING THIS INCIDENT.

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.