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A B737-200 has a potential conflict with 2 opposite direction aircraft while one aircraft is on different ATC frequency near iiu, ky.
| Attributes | |
| ACN | 525719 |
| Time | |
| Date | 200109 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : iiu.vortac |
| State Reference | KY |
| Altitude | msl single value : 27000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : ztl.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-88 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : enroute altitude change |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | controller military : 12 flight time last 90 days : 240 flight time total : 5000 flight time type : 1600 |
| ASRS Report | 525719 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure non adherence : company policies |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance controller : separated traffic flight crew : returned to original clearance flight crew : took precautionary avoidance action other |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | vertical : 400 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure Operational Error |
Narrative:
We were level at FL270 and noticed 2 traffic idents on TCAS at FL280, flying in opposite direction to us. Second aircraft began descent. I noticed immediately when they were 100 ft low, then 200 ft low, etc. ZID told us to turn 30 degrees to the right. TCAS RA told us to descend. We had visual on the MD88 and I chose to continue the turn and maintain altitude. The other aircraft climbed back to FL280, which I saw on TCAS. The MD88 was on another frequency and controled by atl. We queried ATC and was given number to call. Spoke with both ZID and ZTL. They said controller and situation was being investigated. We all agreed that TCAS saved the day.
Original NASA ASRS Text
Title: A B737-200 HAS A POTENTIAL CONFLICT WITH 2 OPPOSITE DIRECTION ACFT WHILE ONE ACFT IS ON DIFFERENT ATC FREQ NEAR IIU, KY.
Narrative: WE WERE LEVEL AT FL270 AND NOTICED 2 TFC IDENTS ON TCAS AT FL280, FLYING IN OPPOSITE DIRECTION TO US. SECOND ACFT BEGAN DSCNT. I NOTICED IMMEDIATELY WHEN THEY WERE 100 FT LOW, THEN 200 FT LOW, ETC. ZID TOLD US TO TURN 30 DEGS TO THE R. TCAS RA TOLD US TO DSND. WE HAD VISUAL ON THE MD88 AND I CHOSE TO CONTINUE THE TURN AND MAINTAIN ALT. THE OTHER ACFT CLBED BACK TO FL280, WHICH I SAW ON TCAS. THE MD88 WAS ON ANOTHER FREQ AND CTLED BY ATL. WE QUERIED ATC AND WAS GIVEN NUMBER TO CALL. SPOKE WITH BOTH ZID AND ZTL. THEY SAID CTLR AND SIT WAS BEING INVESTIGATED. WE ALL AGREED THAT TCAS SAVED THE DAY.
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.