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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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A cpr BE1B pilot reports that the aircraft climbed above its assigned altitude due to a known autoplt altitude hold problem.
| Attributes | |
| ACN | 384700 |
| Time | |
| Date | 199711 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : stl |
| State Reference | MO |
| Altitude | msl bound lower : 6000 msl bound upper : 6600 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : stl |
| Operator | general aviation : corporate |
| Make Model Name | King Air 100 A/B |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 110 flight time total : 6030 flight time type : 40 |
| ASRS Report | 384700 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : overshoot non adherence : far non adherence : clearance other anomaly other |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| 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:
Departed stl to uin, IMC. Autoplt captured and held 6000 ft MSL. I was distracted by a non flying passenger in the right seat. Stl departure called to verify my altitude, they showed me high. This autoplt has a history of not trimming correctly and then deviating from its altitude, and I knew this. The aircraft had climbed to 6600 ft MSL before I hand flew it back to 6000 ft. I communicated with stl departure, that we had deviated from our assigned altitude and now we were re-established at 6000 ft. I should have paid more attention during the entire leveloff, not just, that the autoplt had captured and began the leveling process.
Original NASA ASRS Text
Title: A CPR BE1B PLT RPTS THAT THE ACFT CLBED ABOVE ITS ASSIGNED ALT DUE TO A KNOWN AUTOPLT ALT HOLD PROB.
Narrative: DEPARTED STL TO UIN, IMC. AUTOPLT CAPTURED AND HELD 6000 FT MSL. I WAS DISTRACTED BY A NON FLYING PAX IN THE R SEAT. STL DEP CALLED TO VERIFY MY ALT, THEY SHOWED ME HIGH. THIS AUTOPLT HAS A HISTORY OF NOT TRIMMING CORRECTLY AND THEN DEVIATING FROM ITS ALT, AND I KNEW THIS. THE ACFT HAD CLBED TO 6600 FT MSL BEFORE I HAND FLEW IT BACK TO 6000 FT. I COMMUNICATED WITH STL DEP, THAT WE HAD DEVIATED FROM OUR ASSIGNED ALT AND NOW WE WERE RE-ESTABLISHED AT 6000 FT. I SHOULD HAVE PAID MORE ATTN DURING THE ENTIRE LEVELOFF, NOT JUST, THAT THE AUTOPLT HAD CAPTURED AND BEGAN THE LEVELING PROCESS.
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.