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Approach controller forgot small aircraft Y. Air carrier X TCASII TA RA climb had near midair collision less than standard separation from small aircraft Y. Evasive action taken. System error. TRACON ATCT interfacility coordination.
| Attributes | |
| ACN | 217280 |
| Time | |
| Date | 199208 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : cle |
| State Reference | OH |
| Altitude | msl bound lower : 2000 msl bound upper : 2300 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : cle tower : cle |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent : approach descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | descent : approach |
| 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 : 200 flight time total : 16000 flight time type : 10000 |
| ASRS Report | 217280 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 210 flight time total : 3600 flight time type : 210 |
| ASRS Report | 217269 |
| Events | |
| Anomaly | conflict : nmac non adherence : published procedure non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : investigated faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 0 vertical : 300 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error Intra Facility Coordination Failure |
Narrative:
Air carrier X on 5 mi final (visual approach) to runway 23L at cle, after having been cleared to land, the cle tower controller advised us that we had traffic at 11 O'clock and 1 mi. We were in a descent out of approximately 2500 MSL. We were unable to visually spot the traffic. The first officer asked the altitude of the traffic and was told it was an small aircraft Y at 2000 ft. Controller also told us to maintain 2500. We were about 100 ft to 150 ft below 2500 and began reversing descent and climbing. In the next 10 seconds TCASII issued a TA indicating target directly below us 300 ft below our altitude. Next came an RA commanding a climb of 1500-2000 FPM. Obeyed RA command and made a go around. Later (on the ground) I spoke with ATC supervisor on telephone. He told me approach control had instructed the small aircraft Y to make a left base entry for runway 23R. Approach control forgot to switch small aircraft Y to tower and forgot he overlooked handoff. Tower controller did not advise us that he was not talking to small aircraft Y.
Original NASA ASRS Text
Title: APCH CTLR FORGOT SMA Y. ACR X TCASII TA RA CLB HAD NMAC LTSS FROM SMA Y. EVASIVE ACTION TAKEN. SYS ERROR. TRACON ATCT INTERFAC COORD.
Narrative: ACR X ON 5 MI FINAL (VISUAL APCH) TO RWY 23L AT CLE, AFTER HAVING BEEN CLRED TO LAND, THE CLE TWR CTLR ADVISED US THAT WE HAD TFC AT 11 O'CLOCK AND 1 MI. WE WERE IN A DSCNT OUT OF APPROX 2500 MSL. WE WERE UNABLE TO VISUALLY SPOT THE TFC. THE FO ASKED THE ALT OF THE TFC AND WAS TOLD IT WAS AN SMA Y AT 2000 FT. CTLR ALSO TOLD US TO MAINTAIN 2500. WE WERE ABOUT 100 FT TO 150 FT BELOW 2500 AND BEGAN REVERSING DSCNT AND CLBING. IN THE NEXT 10 SECONDS TCASII ISSUED A TA INDICATING TARGET DIRECTLY BELOW US 300 FT BELOW OUR ALT. NEXT CAME AN RA COMMANDING A CLB OF 1500-2000 FPM. OBEYED RA COMMAND AND MADE A GAR. LATER (ON THE GND) I SPOKE WITH ATC SUPVR ON TELEPHONE. HE TOLD ME APCH CTL HAD INSTRUCTED THE SMA Y TO MAKE A L BASE ENTRY FOR RWY 23R. APCH CTL FORGOT TO SWITCH SMA Y TO TWR AND FORGOT HE OVERLOOKED HDOF. TWR CTLR DID NOT ADVISE US THAT HE WAS NOT TALKING TO SMA Y.
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.