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A TBM700 cpr pilot climbs above his assigned altitude when the altitude capture feature on his aircraft fails to level at FL290 over mfd, oh.
| Attributes | |
| ACN | 481520 |
| Time | |
| Date | 200008 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mfd.airport |
| State Reference | OH |
| Altitude | msl bound lower : 29000 msl bound upper : 29400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | general aviation : corporate |
| Make Model Name | TBM 700 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : vacating altitude climbout other cruise : level |
| Route In Use | enroute airway : ns.airway |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : single pilot |
| Qualification | pilot : multi engine pilot : atp pilot : cfi pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 50 flight time total : 0.8726 flight time type : 1200 |
| ASRS Report | 481520 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : overshoot non adherence : clearance other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued advisory flight crew : returned to assigned altitude |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Aircraft was climbing on autoplt to assigned altitude of 29000 ft with altitude preselect set for 29000 ft. I was alone in aircraft. I heard altitude alerter ding and say I was at 29400 ft and climbing. As I pushed over ZOB asked my altitude. I told him 29400 ft and correcting. There was no further comment from center other than to maintain 29000 ft. The problem was my lack of attention and trust in the autoplt. I must have bumped the preselect off, or not set it as I thought. I know better but just had a lack of attention at altitude leveloff.
Original NASA ASRS Text
Title: A TBM700 CPR PLT CLBS ABOVE HIS ASSIGNED ALT WHEN THE ALT CAPTURE FEATURE ON HIS ACFT FAILS TO LEVEL AT FL290 OVER MFD, OH.
Narrative: ACFT WAS CLBING ON AUTOPLT TO ASSIGNED ALT OF 29000 FT WITH ALT PRESELECT SET FOR 29000 FT. I WAS ALONE IN ACFT. I HEARD ALT ALERTER DING AND SAY I WAS AT 29400 FT AND CLBING. AS I PUSHED OVER ZOB ASKED MY ALT. I TOLD HIM 29400 FT AND CORRECTING. THERE WAS NO FURTHER COMMENT FROM CTR OTHER THAN TO MAINTAIN 29000 FT. THE PROB WAS MY LACK OF ATTN AND TRUST IN THE AUTOPLT. I MUST HAVE BUMPED THE PRESELECT OFF, OR NOT SET IT AS I THOUGHT. I KNOW BETTER BUT JUST HAD A LACK OF ATTN AT ALT LEVELOFF.
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.