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Near midair collision -- controller informs an air carrier that a VFR aircraft would hold its altitude. The VFR aircraft descends -- near midair collision.
| Attributes | |
| ACN | 315006 |
| Time | |
| Date | 199508 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : alb |
| State Reference | NY |
| Altitude | msl bound lower : 2500 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : alb |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent other |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer pilot : commercial |
| Experience | flight time last 90 days : 180 flight time total : 20000 flight time type : 150 |
| ASRS Report | 315006 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : nmac non adherence : published procedure other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action other |
| Consequence | Other |
| Miss Distance | vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Takeoff from runway 19, albany, ny, assigned altitude 3000 ft. We were given a 270 degree vector from departure control. We were advised of VFR traffic that would maintain at or above 3500 ft. During the turn our TCASII system gave us a TA alert followed by an RA. We tightened our turn (about 35 degree bank) and tried to follow the RA, but it exceeded the performance of the aircraft. The RA was commanding 2300-2500 FPM climb, but we were heavy and the temperature was hot. The airspeed at the time was about 200 KTS as we had just cleaned up and were turning. Red TCASII blip almost merged with ours and we watched the other aircraft descend below ours. TCASII then declared clear of conflict and we leveled at 3000 ft.
Original NASA ASRS Text
Title: NMAC -- CTLR INFORMS AN ACR THAT A VFR ACFT WOULD HOLD ITS ALT. THE VFR ACFT DSNDS -- NMAC.
Narrative: TKOF FROM RWY 19, ALBANY, NY, ASSIGNED ALT 3000 FT. WE WERE GIVEN A 270 DEG VECTOR FROM DEP CTL. WE WERE ADVISED OF VFR TFC THAT WOULD MAINTAIN AT OR ABOVE 3500 FT. DURING THE TURN OUR TCASII SYS GAVE US A TA ALERT FOLLOWED BY AN RA. WE TIGHTENED OUR TURN (ABOUT 35 DEG BANK) AND TRIED TO FOLLOW THE RA, BUT IT EXCEEDED THE PERFORMANCE OF THE ACFT. THE RA WAS COMMANDING 2300-2500 FPM CLB, BUT WE WERE HVY AND THE TEMP WAS HOT. THE AIRSPD AT THE TIME WAS ABOUT 200 KTS AS WE HAD JUST CLEANED UP AND WERE TURNING. RED TCASII BLIP ALMOST MERGED WITH OURS AND WE WATCHED THE OTHER ACFT DSND BELOW OURS. TCASII THEN DECLARED CLR OF CONFLICT AND WE LEVELED AT 3000 FT.
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.