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Air carrier flight crew taking off from runway 27 at bos took evasive action responding to 2 TCAS ras to avoid helicopters on departure.
| Attributes | |
| ACN | 1332361 |
| Time | |
| Date | 201602 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | BOS.Airport |
| State Reference | MA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Large Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Climb |
| Route In Use | SID HYLAND 4 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Helicopter |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 228 |
| Person 2 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 183 Flight Crew Total 5266 Flight Crew Type 2895 |
| Events | |
| Anomaly | Conflict NMAC Deviation - Procedural Clearance |
| Miss Distance | Vertical 300 |
Narrative:
TCAS RA at roughly 800 feet for helicopters operating within the departure corridor of bos runway 27 hyland 4 RNAV departure. At or about flap retraction/acceleration altitude received TCAS RA for helicopters. On board indications showed 300 feet vertical separation over TCAS target helicopter. Maneuvered to the left (south) which showed 500 feet of vertical separation over the black and white helicopter with north facing attitude. Flew TCAS RA guidance keeping flaps at the current configuration. Advised tower of TCAS RA and was given instructions to maneuver as required.
Original NASA ASRS Text
Title: Air carrier flight crew taking off from Runway 27 at BOS took evasive action responding to 2 TCAS RAs to avoid helicopters on departure.
Narrative: TCAS RA at roughly 800 feet for helicopters operating within the departure corridor of BOS Runway 27 HYLAND 4 RNAV Departure. At or about flap retraction/acceleration altitude received TCAS RA for helicopters. On board Indications showed 300 feet vertical separation over TCAS target helicopter. Maneuvered to the left (south) which showed 500 feet of vertical separation over the black and white helicopter with north facing attitude. Flew TCAS RA guidance keeping flaps at the current configuration. Advised tower of TCAS RA and was given instructions to maneuver as required.
Data retrieved from NASA's ASRS site 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.