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Flight crew of SBR1 encountered air carrier aircraft responding to a TCASII RA. Modest loss of desired separation occurred.
| Attributes | |
| ACN | 578728 |
| Time | |
| Date | 200304 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dov.airport |
| State Reference | DE |
| Altitude | msl single value : 16500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : corporate |
| Make Model Name | Sabre 40 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 120 flight time total : 8500 flight time type : 2000 |
| ASRS Report | 578728 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne less severe |
| Independent Detector | aircraft equipment : tcas other flight crewa |
| Resolutory Action | flight crew : took precautionary avoidance action |
| Miss Distance | horizontal : 7500 vertical : 1000 |
| Supplementary | |
| Problem Areas | ATC Human Performance FAA Airspace Structure Flight Crew Human Performance Aircraft |
| Primary Problem | FAA |
| Air Traffic Incident | other |
Narrative:
Air carrier aircraft climbed on an RA from TCASII. Air carrier was at 17000 ft, crossing left to right, in front of us. There appeared to be no collision potential. Radar, ZDC, made 2 traffic calls and our onboard air-to-air radar operator locked the target on ZDC calls at 8-9 mi separation. Traffic was visually acquired at 3 mi. Visual identify relayed to ZDC. Traffic initiated a climb, commanded by TCASII RA. Our aircraft is not equipped with TCASII. We made a slight left turn to accelerate the crossing and increase the distance horizontally to the closest point of approach. In this case the air carrier needlessly responded to TCASII. Closest point of approach was 1 1/2 mi laterally and 1000-1500 ft vertically. I don't believe the air carrier ever visually acquired us.
Original NASA ASRS Text
Title: FLT CREW OF SBR1 ENCOUNTERED ACR ACFT RESPONDING TO A TCASII RA. MODEST LOSS OF DESIRED SEPARATION OCCURRED.
Narrative: ACR ACFT CLBED ON AN RA FROM TCASII. ACR WAS AT 17000 FT, XING L TO R, IN FRONT OF US. THERE APPEARED TO BE NO COLLISION POTENTIAL. RADAR, ZDC, MADE 2 TFC CALLS AND OUR ONBOARD AIR-TO-AIR RADAR OPERATOR LOCKED THE TARGET ON ZDC CALLS AT 8-9 MI SEPARATION. TFC WAS VISUALLY ACQUIRED AT 3 MI. VISUAL IDENT RELAYED TO ZDC. TFC INITIATED A CLB, COMMANDED BY TCASII RA. OUR ACFT IS NOT EQUIPPED WITH TCASII. WE MADE A SLIGHT L TURN TO ACCELERATE THE XING AND INCREASE THE DISTANCE HORIZLY TO THE CLOSEST POINT OF APCH. IN THIS CASE THE ACR NEEDLESSLY RESPONDED TO TCASII. CLOSEST POINT OF APCH WAS 1 1/2 MI LATERALLY AND 1000-1500 FT VERTLY. I DON'T BELIEVE THE ACR EVER VISUALLY ACQUIRED US.
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.