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An air carrier light transport did some fancy flying to avoid the wake turbulence of a widebody transport in the lax visual traffic pattern.
| Attributes | |
| ACN | 237986 |
| Time | |
| Date | 199304 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : lax |
| State Reference | CA |
| Altitude | msl bound lower : 2500 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : lax |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 5000 flight time type : 500 |
| ASRS Report | 237986 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : far other anomaly other non adherence : far |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
We were cleared for visual to runway 24L. An air carrier B widebody transport was cleared for visual to runway 24R. In order to avoid the widebody transport's wake, we elected to fly over their flight path by 500 ft. This was approved by approach. Then on final, the widebody transport appeared south of course. We flew along side but below him to avoid his wake behind him. If we were to fly above him we would have had to deal with the scattered clouds above us. Due to wake, the only place we could safely be was along side of the widebody transport.
Original NASA ASRS Text
Title: AN ACR LTT DID SOME FANCY FLYING TO AVOID THE WAKE TURB OF A WDB IN THE LAX VISUAL TFC PATTERN.
Narrative: WE WERE CLRED FOR VISUAL TO RWY 24L. AN ACR B WDB WAS CLRED FOR VISUAL TO RWY 24R. IN ORDER TO AVOID THE WDB'S WAKE, WE ELECTED TO FLY OVER THEIR FLT PATH BY 500 FT. THIS WAS APPROVED BY APCH. THEN ON FINAL, THE WDB APPEARED S OF COURSE. WE FLEW ALONG SIDE BUT BELOW HIM TO AVOID HIS WAKE BEHIND HIM. IF WE WERE TO FLY ABOVE HIM WE WOULD HAVE HAD TO DEAL WITH THE SCATTERED CLOUDS ABOVE US. DUE TO WAKE, THE ONLY PLACE WE COULD SAFELY BE WAS ALONG SIDE OF THE WDB.
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.