Incident Overview
During an ILS approach to Runway 09R, Flight 146, an ATR-42, encountered wake turbulence from Flight 554, a Boeing 737-300. The incident occurred approximately 18 nautical miles from the airport when Flight 146 was at an altitude of about 4,900 feet.
Flight Path Details
Radar data indicated that Flight 554 was vectored onto the approach from the north and intercepted the localizer approximately 17.5 nautical miles from the airport while descending from 5,200 feet to 4,800 feet. At the time of the encounter, the separation between the two aircraft was approximately 4.8 nautical miles.
Aircraft Response
During the wake turbulence encounter, the vertical acceleration of Flight 146 varied from 2.3679 g's to 0.5542 g's, indicating significant turbulence.
Conclusion
No other details regarding injuries or damage were provided in the source.