 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An ARTCC controller reported when he descended a C750 behind a B777 the C750 experienced uncommanded roll and lost 800 ft; even though there was 10 miles separation.
| Attributes | |
| ACN | 894096 |
| Time | |
| Date | 201006 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | Citation X (C750) |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Supervisor / CIC |
| Events | |
| Anomaly | Inflight Event / Encounter Wake Vortex Encounter Inflight Event / Encounter Loss Of Aircraft Control |
Narrative:
C750 was in a descent to FL200. B777 was in front 10 ahead on the same airway already level at FL200. Immediately upon reaching FL200 C750 reported a 50 degree roll and loss of 800 ft of altitude. Immediately below and in the vicinity of C750 were other aircraft [so the outcome] could have been disastrous.
Original NASA ASRS Text
Title: An ARTCC Controller reported when he descended a C750 behind a B777 the C750 experienced uncommanded roll and lost 800 FT; even though there was 10 miles separation.
Narrative: C750 was in a descent to FL200. B777 was in front 10 ahead on the same airway already level at FL200. Immediately upon reaching FL200 C750 reported a 50 degree roll and loss of 800 FT of altitude. Immediately below and in the vicinity of C750 were other aircraft [so the outcome] could have been disastrous.
Data retrieved from NASA's ASRS site as of April 2012 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.