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Commuter on approach has request to slo then medium large transport vectored ahead. Encounters wake turbulence.
| Attributes | |
| ACN | 201066 |
| Time | |
| Date | 199201 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : atl |
| State Reference | GA |
| Altitude | msl bound lower : 5500 msl bound upper : 6000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : atl |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 256 flight time total : 8703 flight time type : 3344 |
| ASRS Report | 201066 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | inflight encounter other other anomaly other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
Flight from roa to atl. On approach to atl we were assigned 6000 ft and a heading of 250 degree to join the localizer to runway 26R. We were approximately 3 mi in trail of a widebody transport when approach told us to slow to 160 KTS at which time approach slotted an medium large transport between us and the widebody transport on the visual approach. As we were joining the localizer we encountered a tremendous downdraft with associated temporary loss of control of the aircraft. Although we had been warned of moderate to severe turbulence below 8000 ft by approach control earlier in the approach, I immediately suspected wake turbulence from the medium large transport since this is an all too frequent occurrence at atl. We lost between 300 ft and 400 ft of altitude before we regained control of the aircraft with no further difficulties on the approach and landing. All aircraft should be given proper spacing into atl or any other major airport. While I believe atl has some of the best controllers in the system, we are all too often made the 'fall guys' to take or give slack for the larger aircraft.
Original NASA ASRS Text
Title: COMMUTER ON APCH HAS REQUEST TO SLO THEN MLG VECTORED AHEAD. ENCOUNTERS WAKE TURB.
Narrative: FLT FROM ROA TO ATL. ON APCH TO ATL WE WERE ASSIGNED 6000 FT AND A HDG OF 250 DEG TO JOIN THE LOC TO RWY 26R. WE WERE APPROX 3 MI IN TRAIL OF A WDB WHEN APCH TOLD US TO SLOW TO 160 KTS AT WHICH TIME APCH SLOTTED AN MLG BTWN US AND THE WDB ON THE VISUAL APCH. AS WE WERE JOINING THE LOC WE ENCOUNTERED A TREMENDOUS DOWNDRAFT WITH ASSOCIATED TEMPORARY LOSS OF CTL OF THE ACFT. ALTHOUGH WE HAD BEEN WARNED OF MODERATE TO SEVERE TURB BELOW 8000 FT BY APCH CTL EARLIER IN THE APCH, I IMMEDIATELY SUSPECTED WAKE TURB FROM THE MLG SINCE THIS IS AN ALL TOO FREQUENT OCCURRENCE AT ATL. WE LOST BTWN 300 FT AND 400 FT OF ALT BEFORE WE REGAINED CTL OF THE ACFT WITH NO FURTHER DIFFICULTIES ON THE APCH AND LNDG. ALL ACFT SHOULD BE GIVEN PROPER SPACING INTO ATL OR ANY OTHER MAJOR ARPT. WHILE I BELIEVE ATL HAS SOME OF THE BEST CTLRS IN THE SYS, WE ARE ALL TOO OFTEN MADE THE 'FALL GUYS' TO TAKE OR GIVE SLACK FOR THE LARGER ACFT.
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.