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Air carrier X TCASII TA RA evasive action taken climb non adherence to ATC clearance had near midair collision with aircraft Y.
| Attributes | |
| ACN | 201616 |
| Time | |
| Date | 199202 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : fll |
| State Reference | FL |
| Altitude | msl bound lower : 6000 msl bound upper : 6350 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : fll |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other descent : approach |
| Route In Use | approach : straight in |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | approach : visual |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 10000 flight time type : 1000 |
| ASRS Report | 201616 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 5000 flight time type : 750 |
| ASRS Report | 201670 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : nmac non adherence : clearance non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 400 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Air carrier X on final approach to 9L at fll approximately 15-20 mi on final, on localizer centerline, level at assigned altitude 6000 ft. TCASII gave TA, 1 O'clock/4 mi, followed by 'do not descend.' followed shortly thereafter by 'climb, climb.' TCASII indicated climb needed was 1200 FPM. Autoplt was disconnected and climb was initiated. Conflicting traffic was located visually and appeared to be maneuvering in a dlb (light twin aircraft). We deviated altitude to 6350 ft. The VFR aircraft passed directly underneath us approximately 400 ft below. He did not appear to take any evasive action. Approach control was advised of our altitude deviation and the reason. ATC did not give any traffic advisories.
Original NASA ASRS Text
Title: ACR X TCASII TA RA EVASIVE ACTION TAKEN CLB NON ADHERENCE TO ATC CLRNC HAD NMAC WITH ACFT Y.
Narrative: ACR X ON FINAL APCH TO 9L AT FLL APPROX 15-20 MI ON FINAL, ON LOC CTRLINE, LEVEL AT ASSIGNED ALT 6000 FT. TCASII GAVE TA, 1 O'CLOCK/4 MI, FOLLOWED BY 'DO NOT DSND.' FOLLOWED SHORTLY THEREAFTER BY 'CLB, CLB.' TCASII INDICATED CLB NEEDED WAS 1200 FPM. AUTOPLT WAS DISCONNECTED AND CLB WAS INITIATED. CONFLICTING TFC WAS LOCATED VISUALLY AND APPEARED TO BE MANEUVERING IN A DLB (LIGHT TWIN ACFT). WE DEVIATED ALT TO 6350 FT. THE VFR ACFT PASSED DIRECTLY UNDERNEATH US APPROX 400 FT BELOW. HE DID NOT APPEAR TO TAKE ANY EVASIVE ACTION. APCH CTL WAS ADVISED OF OUR ALTDEV AND THE REASON. ATC DID NOT GIVE ANY TFC ADVISORIES.
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.