 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B737 flight crew described encountering wake vortex following a heavy airbus on approach to msp; they slowed withough advising ATC.
| Attributes | |
| ACN | 888152 |
| Time | |
| Date | 201005 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | MSP.Airport |
| State Reference | MN |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 136 |
| Person 2 | |
| Function | First Officer |
| Experience | Flight Crew Last 90 Days 165 Flight Crew Type 4000 |
| Events | |
| Anomaly | Deviation - Procedural Clearance Deviation - Speed All Types Inflight Event / Encounter Wake Vortex Encounter |
Narrative:
During our approach into msp; we were warned by ATC multiple times of a heavy airbus that we would be following. We then received multiple slowdown instructions from ATC at approximately 20 NM from the field. Each time we complied. We went from 250 knots to 210 knots to 190 knots to 170 knots all within a 10-15 NM period. At 11 NM out we hit the airbus's wake and decided to slow and proceed above glidepath in order to avoid any more jolting. At this point we did not let the controller know due to radio congestion. I believe they were expecting us to be at 170 knots and we slowed to 140 knots. We were told to return to our assigned speed. We landed and no further events occurred.
Original NASA ASRS Text
Title: A B737 flight crew described encountering wake vortex following a heavy Airbus on approach to MSP; they slowed withough advising ATC.
Narrative: During our approach into MSP; we were warned by ATC multiple times of a heavy Airbus that we would be following. We then received multiple slowdown instructions from ATC at approximately 20 NM from the field. Each time we complied. We went from 250 knots to 210 knots to 190 knots to 170 knots all within a 10-15 NM period. At 11 NM out we hit the Airbus's wake and decided to slow and proceed above glidepath in order to avoid any more jolting. At this point we did not let the Controller know due to radio congestion. I believe they were expecting us to be at 170 knots and we slowed to 140 knots. We were told to return to our assigned speed. We landed and no further events occurred.
Data retrieved from NASA's ASRS site as of April 2012 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.