LR45 flight crew overshot their assigned altitude.

Attributes
ACN	463510
Time
Date	200002
Day	Thu
Local Time Of Day	1201 To 1800
Place
State Reference	TN
Altitude	msl bound lower : 35000 msl bound upper : 37000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid.artcc
Operator	general aviation : corporate
Make Model Name	Gates Learjet Corp Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	cruise : enroute altitude change
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : instrument pilot : multi engine pilot : cfi pilot : atp pilot : commercial
Experience	flight time last 90 days : 100 flight time total : 4150 flight time type : 300
ASRS Report	463510
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : multi engine pilot : commercial pilot : atp
Experience	flight time last 90 days : 90 flight time total : 8500 flight time type : 220
ASRS Report	464779
Events
Anomaly	aircraft equipment problem : critical altitude deviation : overshoot non adherence : clearance other anomaly
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : regained aircraft control flight crew : returned to assigned altitude none taken : insufficient time
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

ZID issued a climb from FL350 to FL370. As I commenced the climb and pushed the power levers to maximum continuous thrust, the overspd warning went off. The autoplt had control of the aircraft and initiated a climb in excess of 5000 FPM. Passing through FL360 at this time, I realized that we were not going to level off at FL370. I disconnected the autoplt and began to descend back to FL370. We had overshot by about 700 ft. I was unable to arrest the descent in time in part due to passenger up and moving about the cabin -- any extreme control inputs would have jeopardized their safety. I realize an autoplt malfunction is not an excuse to miss an assigned altitude. As the PF, it is my responsibility to monitor and control the autoplt and recognize potential problems before they develop into a situation where extreme maneuvers might be necessary. In the future, I will be more diligent in my monitoring of the autoplt. It is easy to get complacent in today's modern cockpits.

Original NASA ASRS Text

Title: LR45 FLC OVERSHOT THEIR ASSIGNED ALT.

Narrative: ZID ISSUED A CLB FROM FL350 TO FL370. AS I COMMENCED THE CLB AND PUSHED THE PWR LEVERS TO MAX CONTINUOUS THRUST, THE OVERSPD WARNING WENT OFF. THE AUTOPLT HAD CTL OF THE ACFT AND INITIATED A CLB IN EXCESS OF 5000 FPM. PASSING THROUGH FL360 AT THIS TIME, I REALIZED THAT WE WERE NOT GOING TO LEVEL OFF AT FL370. I DISCONNECTED THE AUTOPLT AND BEGAN TO DSND BACK TO FL370. WE HAD OVERSHOT BY ABOUT 700 FT. I WAS UNABLE TO ARREST THE DSCNT IN TIME IN PART DUE TO PAX UP AND MOVING ABOUT THE CABIN -- ANY EXTREME CTL INPUTS WOULD HAVE JEOPARDIZED THEIR SAFETY. I REALIZE AN AUTOPLT MALFUNCTION IS NOT AN EXCUSE TO MISS AN ASSIGNED ALT. AS THE PF, IT IS MY RESPONSIBILITY TO MONITOR AND CTL THE AUTOPLT AND RECOGNIZE POTENTIAL PROBS BEFORE THEY DEVELOP INTO A SIT WHERE EXTREME MANEUVERS MIGHT BE NECESSARY. IN THE FUTURE, I WILL BE MORE DILIGENT IN MY MONITORING OF THE AUTOPLT. IT IS EASY TO GET COMPLACENT IN TODAY'S MODERN COCKPITS.

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.