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B757-200 pilot concerned with the potential of a wake turbulence phenomena collision by an overtaking E120 conducting a visual approach to an airport with a parallel runway.
| Attributes | |
| ACN | 610430 |
| Time | |
| Date | 200403 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 1100 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : zzz.tower |
| Make Model Name | Xingu EMB-121 All Series |
| Flight Phase | descent : approach |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 |
| ASRS Report | 610430 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne less severe inflight encounter : wake turbulence |
| Independent Detector | aircraft equipment : tcas other controllera other flight crewa |
| Resolutory Action | controller : issued advisory flight crew : took precautionary avoidance action |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance Aircraft Environmental Factor |
| Primary Problem | Flight Crew Human Performance |
Narrative:
On final visual approach to right runway with ILS back up, cleared to follow brasilia on approach to left runway. Visually acquired second trailing aircraft, also a brasilia, which was cleared to maintain separation and follow me to the airport and land on left runway. At approximately 1100 ft AGL, got a TCASII RA to descend. Command followed. Trailing aircraft was closing above and left, had visual contact. TCASII RA to adjust vertical descent, also followed. Both maneuvers accomplished above GS. Trailing brasilia passed my aircraft on short final. Trailing aircraft was in sight during entire episode. I did not expect this aircraft to close separation or to pass me as this was not his clearance. It is my feeling, due to the relative position of both aircraft, that if caught in my wake, the possibility that the brasilia might have rolled right over the top and into my aircraft existed. It has happened in the past and there is photographic evidence to support this.
Original NASA ASRS Text
Title: B757-200 PLT CONCERNED WITH THE POTENTIAL OF A WAKE TURB PHENOMENA COLLISION BY AN OVERTAKING E120 CONDUCTING A VISUAL APCH TO AN ARPT WITH A PARALLEL RWY.
Narrative: ON FINAL VISUAL APCH TO R RWY WITH ILS BACK UP, CLRED TO FOLLOW BRASILIA ON APCH TO L RWY. VISUALLY ACQUIRED SECOND TRAILING ACFT, ALSO A BRASILIA, WHICH WAS CLRED TO MAINTAIN SEPARATION AND FOLLOW ME TO THE ARPT AND LAND ON L RWY. AT APPROX 1100 FT AGL, GOT A TCASII RA TO DSND. COMMAND FOLLOWED. TRAILING ACFT WAS CLOSING ABOVE AND L, HAD VISUAL CONTACT. TCASII RA TO ADJUST VERT DSCNT, ALSO FOLLOWED. BOTH MANEUVERS ACCOMPLISHED ABOVE GS. TRAILING BRASILIA PASSED MY ACFT ON SHORT FINAL. TRAILING ACFT WAS IN SIGHT DURING ENTIRE EPISODE. I DID NOT EXPECT THIS ACFT TO CLOSE SEPARATION OR TO PASS ME AS THIS WAS NOT HIS CLRNC. IT IS MY FEELING, DUE TO THE RELATIVE POS OF BOTH ACFT, THAT IF CAUGHT IN MY WAKE, THE POSSIBILITY THAT THE BRASILIA MIGHT HAVE ROLLED RIGHT OVER THE TOP AND INTO MY ACFT EXISTED. IT HAS HAPPENED IN THE PAST AND THERE IS PHOTOGRAPHIC EVIDENCE TO SUPPORT THIS.
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.