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Altitude deviation altitude overshot, autoplt did not function properly and the distracted pilot did not detect the overshot altitude until 1000 ft high.
| Attributes | |
| ACN | 299264 |
| Time | |
| Date | 199503 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : ftw |
| State Reference | TX |
| Altitude | msl bound lower : 23000 msl bound upper : 24000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zfw tower : mil |
| Operator | general aviation : corporate |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 115 flight time total : 2200 flight time type : 107 |
| ASRS Report | 299264 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance other anomaly other |
| 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:
During climb to cruise altitude (FL230), and with autoplt engaged, and altitude select pushed in, I diverted my attention to the radar and the possible course to be taken to avoid some WX ahead. The next time I looked at the altimeter, I saw that it was going through 24000 ft and climbing. Simultaneously, center called to ask our altitude. I started down at that time to level at FL230. I believe this situation was caused by a combination of the autoplt failure to engage on the selected altitude (23000 ft) and my momentary failure to monitor the autoplt's expected leveloff at FL230. Needless to say, I'm very sorry this happened, and will increase my vigilance on the autoplt use in the future.
Original NASA ASRS Text
Title: ALTDEV ALT OVERSHOT, AUTOPLT DID NOT FUNCTION PROPERLY AND THE DISTRACTED PLT DID NOT DETECT THE OVERSHOT ALT UNTIL 1000 FT HIGH.
Narrative: DURING CLB TO CRUISE ALT (FL230), AND WITH AUTOPLT ENGAGED, AND ALT SELECT PUSHED IN, I DIVERTED MY ATTN TO THE RADAR AND THE POSSIBLE COURSE TO BE TAKEN TO AVOID SOME WX AHEAD. THE NEXT TIME I LOOKED AT THE ALTIMETER, I SAW THAT IT WAS GOING THROUGH 24000 FT AND CLBING. SIMULTANEOUSLY, CTR CALLED TO ASK OUR ALT. I STARTED DOWN AT THAT TIME TO LEVEL AT FL230. I BELIEVE THIS SIT WAS CAUSED BY A COMBINATION OF THE AUTOPLT FAILURE TO ENGAGE ON THE SELECTED ALT (23000 FT) AND MY MOMENTARY FAILURE TO MONITOR THE AUTOPLT'S EXPECTED LEVELOFF AT FL230. NEEDLESS TO SAY, I'M VERY SORRY THIS HAPPENED, AND WILL INCREASE MY VIGILANCE ON THE AUTOPLT USE IN THE FUTURE.
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.