Flight crew of a private jet overshot assigned altitude during climb due to not only the inattn of the flight crew but the lack of an altitude capture pre-select feature on the autoplt.

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Attributes
ACN	311660
Time
Date	199507
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : trm
State Reference	CA
Altitude	msl bound lower : 26000 msl bound upper : 26420
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	enroute : direct enroute airway : zla
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 50 flight time total : 19000 flight time type : 500
ASRS Report	311660
Person 2
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
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 asking for FL290, but given FL260 (as far as last assigned). Left seat PF captain inadvertently allowed autoplt to ascend to 26420 ft. I noticed and helped captain get aircraft down to FL260. Center later indicated FL260 would be our 'final' en route altitude. The autoplt on this aircraft does not have an 'altitude' pre-select and I (copilot) failed to monitor his climb. Lesson learned!

Original NASA ASRS Text

Title: FLC OF A PVT JET OVERSHOT ASSIGNED ALT DURING CLB DUE TO NOT ONLY THE INATTN OF THE FLC BUT THE LACK OF AN ALT CAPTURE PRE-SELECT FEATURE ON THE AUTOPLT.

Narrative: WE WERE ASKING FOR FL290, BUT GIVEN FL260 (AS FAR AS LAST ASSIGNED). L SEAT PF CAPT INADVERTENTLY ALLOWED AUTOPLT TO ASCEND TO 26420 FT. I NOTICED AND HELPED CAPT GET ACFT DOWN TO FL260. CTR LATER INDICATED FL260 WOULD BE OUR 'FINAL' ENRTE ALT. THE AUTOPLT ON THIS ACFT DOES NOT HAVE AN 'ALT' PRE-SELECT AND I (COPLT) FAILED TO MONITOR HIS CLB. LESSON LEARNED!

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.