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Air carrier X non adherence to ATC instructions made unauthorized turn on final approach. Pilot deviation.
| Attributes | |
| ACN | 249820 |
| Time | |
| Date | 199308 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : ord |
| State Reference | IL |
| Altitude | msl bound lower : 3000 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : ord |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach landing : missed approach |
| Flight Plan | IFR |
| 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 : 15000 |
| ASRS Report | 249820 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 200 flight time total : 4000 flight time type : 600 |
| ASRS Report | 249830 |
| Events | |
| Anomaly | non adherence : clearance other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : took evasive action other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Air carrier X executed approach and missed approach for runway 4R at ord. Declared minimum fuel -- cleared for runway 9R approach (NDB). On base leg for runway 9R cleared for visual approach to follow traffic. Shortly thereafter, saw additional traffic appearing to be for runway 9R. Started l-hand turn to follow new traffic and gain spacing. Received 2 TCASII warnings from right commanding a descent. Notified approach in left turn -- was following wrong traffic and was breaking off approach. Then we were notified that traffic was for runway 9L and continue turn to east. Did so and landed on runway 9R. ATIS stated that the only landing runways at ord were 9R and 4R. No one mentioned that parallel approachs were being flown to runway 9L. No callout of parallel traffic was made. Supplemental information from acn 249830: air carrier X on base leg to final for runway 9R -- cleared for visual and follow traffic -- noticed additional traffic turned left to follow new traffic. While in turn, received 2 additional TCASII commands. Followed commands -- kept turning left, rolled out on final for runway 9R and landed. Never knew that new traffic was for runway 9L. Not on ATIS and never told about parallel traffic until we said we were breaking off approach. Supplemental information from acn 249962: traffic pointed out to air carrier X to follow on runway 9R. We reported traffic in sight and were cleared for visual approach. I then observed same aircraft doing a 360 degree turn on final. Traffic above turned in to follow. Had to be leveled off to maintain separation.
Original NASA ASRS Text
Title: ACR X NON ADHERENCE TO ATC INSTRUCTIONS MADE UNAUTH TURN ON FINAL APCH. PLTDEV.
Narrative: ACR X EXECUTED APCH AND MISSED APCH FOR RWY 4R AT ORD. DECLARED MINIMUM FUEL -- CLRED FOR RWY 9R APCH (NDB). ON BASE LEG FOR RWY 9R CLRED FOR VISUAL APCH TO FOLLOW TFC. SHORTLY THEREAFTER, SAW ADDITIONAL TFC APPEARING TO BE FOR RWY 9R. STARTED L-HAND TURN TO FOLLOW NEW TFC AND GAIN SPACING. RECEIVED 2 TCASII WARNINGS FROM R COMMANDING A DSCNT. NOTIFIED APCH IN L TURN -- WAS FOLLOWING WRONG TFC AND WAS BREAKING OFF APCH. THEN WE WERE NOTIFIED THAT TFC WAS FOR RWY 9L AND CONTINUE TURN TO E. DID SO AND LANDED ON RWY 9R. ATIS STATED THAT THE ONLY LNDG RWYS AT ORD WERE 9R AND 4R. NO ONE MENTIONED THAT PARALLEL APCHS WERE BEING FLOWN TO RWY 9L. NO CALLOUT OF PARALLEL TFC WAS MADE. SUPPLEMENTAL INFO FROM ACN 249830: ACR X ON BASE LEG TO FINAL FOR RWY 9R -- CLRED FOR VISUAL AND FOLLOW TFC -- NOTICED ADDITIONAL TFC TURNED L TO FOLLOW NEW TFC. WHILE IN TURN, RECEIVED 2 ADDITIONAL TCASII COMMANDS. FOLLOWED COMMANDS -- KEPT TURNING L, ROLLED OUT ON FINAL FOR RWY 9R AND LANDED. NEVER KNEW THAT NEW TFC WAS FOR RWY 9L. NOT ON ATIS AND NEVER TOLD ABOUT PARALLEL TFC UNTIL WE SAID WE WERE BREAKING OFF APCH. SUPPLEMENTAL INFO FROM ACN 249962: TFC POINTED OUT TO ACR X TO FOLLOW ON RWY 9R. WE RPTED TFC IN SIGHT AND WERE CLRED FOR VISUAL APCH. I THEN OBSERVED SAME ACFT DOING A 360 DEG TURN ON FINAL. TFC ABOVE TURNED IN TO FOLLOW. HAD TO BE LEVELED OFF TO MAINTAIN SEPARATION.
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.