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Aircraft pitched up 10 degrees and rolled into a 30 degree bank when the autoplt turn knob was used for a 5 degree turn.
| Attributes | |
| ACN | 435061 |
| Time | |
| Date | 199904 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : fwa.vortac |
| State Reference | IN |
| Altitude | msl bound lower : 33000 msl bound upper : 33500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 8500 flight time type : 3900 |
| ASRS Report | 435061 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : excursion from assigned altitude non adherence : clearance |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | flight crew : returned to assigned airspace |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
While the captain was making a 5 degree bank turn at FL330, the aircraft pitched up 10 degrees and entered a 30 degree bank. The autoplt was disengaged. The aircraft climbed approximately 500 ft before being brought under control. ATC made no comment at any time.
Original NASA ASRS Text
Title: ACFT PITCHED UP 10 DEGS AND ROLLED INTO A 30 DEG BANK WHEN THE AUTOPLT TURN KNOB WAS USED FOR A 5 DEG TURN.
Narrative: WHILE THE CAPT WAS MAKING A 5 DEG BANK TURN AT FL330, THE ACFT PITCHED UP 10 DEGS AND ENTERED A 30 DEG BANK. THE AUTOPLT WAS DISENGAGED. THE ACFT CLBED APPROX 500 FT BEFORE BEING BROUGHT UNDER CTL. ATC MADE NO COMMENT AT ANY TIME.
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.