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P50 controller described incident when a CRJ200 following a B737 encountered the B737's wake at 11000 ft causing a 35 degree roll.
| Attributes | |
| ACN | 707047 |
| Time | |
| Date | 200608 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : iwa.vortac |
| State Reference | AZ |
| Altitude | msl single value : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : p50.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | arrival star : arlin3 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : p50.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet 200 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | arrival star : arlin3 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | pilot : instrument |
| Experience | controller radar : 20 controller time certified in position1 : 8 flight time total : 1800 |
| ASRS Report | 707047 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | inflight encounter : wake turbulence |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Airspace Structure Aircraft |
| Primary Problem | Aircraft |
Narrative:
Crj-200 trailing B737-700 (winglets) on arlin 3 STAR by 7 NM. Both aircraft assigned 11000 ft and 250 KTS per STAR. Crj pilot complained of wake from B73W; causing 35 degree roll. Pilot requested 10 degree turn to offset track. Do winglets increase or decrease vortex generation?
Original NASA ASRS Text
Title: P50 CTLR DESCRIBED INCIDENT WHEN A CRJ200 FOLLOWING A B737 ENCOUNTERED THE B737'S WAKE AT 11000 FT CAUSING A 35 DEG ROLL.
Narrative: CRJ-200 TRAILING B737-700 (WINGLETS) ON ARLIN 3 STAR BY 7 NM. BOTH ACFT ASSIGNED 11000 FT AND 250 KTS PER STAR. CRJ PLT COMPLAINED OF WAKE FROM B73W; CAUSING 35 DEG ROLL. PLT REQUESTED 10 DEG TURN TO OFFSET TRACK. DO WINGLETS INCREASE OR DECREASE VORTEX GENERATION?
Data retrieved from NASA's ASRS site as of January 2009 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.