Captain of an small transport turboprop overshot assigned altitude during the climb as a result of distraction with the GPS. The altitude alerter was malfunctioning and the autoplt failed to capture the altitude. Altitude deviation altitude overshot.

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Attributes
ACN	330110
Time
Date	199603
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : jax
State Reference	FL
Altitude	msl bound lower : 25000 msl bound upper : 25400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zjx
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : direct enroute airway : zjx
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 21500 flight time type : 300
ASRS Report	330110
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : overshoot non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Altitude alerter problem, plus altitude would not capture. In the confusion altitude gain of 400 ft before we arrested it. Center advised the same time we caught it. We were also being cleared direct to SOP at the same time. GPS is in pedestal on center console. Attention to that caused our inattn to the climb just long enough.

Original NASA ASRS Text

Title: CAPT OF AN SMT TURBOPROP OVERSHOT ASSIGNED ALT DURING THE CLB AS A RESULT OF DISTR WITH THE GPS. THE ALT ALERTER WAS MALFUNCTIONING AND THE AUTOPLT FAILED TO CAPTURE THE ALT. ALTDEV ALT OVERSHOT.

Narrative: ALT ALERTER PROB, PLUS ALT WOULD NOT CAPTURE. IN THE CONFUSION ALT GAIN OF 400 FT BEFORE WE ARRESTED IT. CTR ADVISED THE SAME TIME WE CAUGHT IT. WE WERE ALSO BEING CLRED DIRECT TO SOP AT THE SAME TIME. GPS IS IN PEDESTAL ON CTR CONSOLE. ATTN TO THAT CAUSED OUR INATTN TO THE CLB JUST LONG ENOUGH.

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.