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A C550 encountered turbulence while at cruise altitude near fjc VOR on flight to teb. The turbulence was such that it disengaged the autoplt and caused the aircraft to deviate 300 ft from assigned altitude before flight crew manually recovered to their assigned altitude.
| Attributes | |
| ACN | 425899 |
| Time | |
| Date | 199901 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : fjc |
| State Reference | PA |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : lga |
| Operator | general aviation : corporate |
| Make Model Name | Citation II S2/Bravo |
| Flight Phase | cruise other cruise other |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi |
| Experience | flight time last 90 days : 150 flight time total : 6100 flight time type : 1100 |
| ASRS Report | 425899 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : excursion from assigned altitude |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : overcame equipment problem |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On a flight to teb behind a strong storm it was very bumpy (updrafts and downdrafts as well). Aircraft on autoplt. Autoplt disengaged as a result of turbulence and aircraft lost 300 ft before I caught it and recovered. High workload situation due to numerous ATC delays and rertes probably contributed to the occurrence (no conflict). I wish I caught it earlier. ATC reminded about altimeter setting.
Original NASA ASRS Text
Title: A C550 ENCOUNTERED TURB WHILE AT CRUISE ALT NEAR FJC VOR ON FLT TO TEB. THE TURB WAS SUCH THAT IT DISENGAGED THE AUTOPLT AND CAUSED THE ACFT TO DEVIATE 300 FT FROM ASSIGNED ALT BEFORE FLC MANUALLY RECOVERED TO THEIR ASSIGNED ALT.
Narrative: ON A FLT TO TEB BEHIND A STRONG STORM IT WAS VERY BUMPY (UPDRAFTS AND DOWNDRAFTS AS WELL). ACFT ON AUTOPLT. AUTOPLT DISENGAGED AS A RESULT OF TURB AND ACFT LOST 300 FT BEFORE I CAUGHT IT AND RECOVERED. HIGH WORKLOAD SIT DUE TO NUMEROUS ATC DELAYS AND RERTES PROBABLY CONTRIBUTED TO THE OCCURRENCE (NO CONFLICT). I WISH I CAUGHT IT EARLIER. ATC REMINDED ABOUT ALTIMETER SETTING.
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.