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ZID controller experienced a loss of separation event during a weather impacted session with multiple changes in separation requests from adjacent sectors.
| Attributes | |
| ACN | 948215 |
| Time | |
| Date | 201105 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZID.ARTCC |
| State Reference | IN |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Person 1 | |
| Function | Enroute |
| Qualification | Air Traffic Control Fully Certified |
| Events | |
| Anomaly | ATC Issue All Types Inflight Event / Encounter Weather / Turbulence |
Narrative:
I started my session with 15 miles in transit (mit) to chicago O'hare. There was a stream of approximately 10 or more being vectored to acquire this separation. I received a call to inform me that ZAU had now pushed back the spacing to 25 mit. I had numerous aircraft on headings to get the appropriate spacing. Later; we got a call that spacing was now back to the original 15 mit. I climbed an E170 from the low sector FL240. The E170 was flying directly between 2 active restricted areas which are up to FL240. I stated the previous because I need to vector him for the required mit. I then took a hand off on an E145 climbing to FL230. The E145's flight path was headed right towards the restricted area. I then received a call from the low sector working the E145 to inform me they had not issued the proper weather avoidance route to iah. I then climbed the E145 to FL250. I turn the E170 to a heading of 060. Then; I turn the E145 10 degrees to the left to avoid the E170. The E145 was out of FL230 within 5 miles of the E170. Recommendation; better communication and planning; also; I know weather changes in a minute but limiting reroutes. The pilots and ATC can only go through so many changes before you are just tempting the odds for an error. We had aircraft; not even an hour into their flight; on their 4th reroute.
Original NASA ASRS Text
Title: ZID Controller experienced a loss of separation event during a weather impacted session with multiple changes in separation requests from adjacent sectors.
Narrative: I started my session with 15 Miles In Transit (MIT) to Chicago O'Hare. There was a stream of approximately 10 or more being vectored to acquire this separation. I received a call to inform me that ZAU had now pushed back the spacing to 25 MIT. I had numerous aircraft on headings to get the appropriate spacing. Later; we got a call that spacing was now back to the original 15 MIT. I climbed an E170 from the low sector FL240. The E170 was flying directly between 2 active restricted areas which are up to FL240. I stated the previous because I need to vector him for the required MIT. I then took a hand off on an E145 climbing to FL230. The E145's flight path was headed right towards the restricted area. I then received a call from the low sector working the E145 to inform me they had not issued the proper weather avoidance route to IAH. I then climbed the E145 to FL250. I turn the E170 to a heading of 060. Then; I turn the E145 10 degrees to the left to avoid the E170. The E145 was out of FL230 within 5 miles of the E170. Recommendation; better communication and planning; also; I know weather changes in a minute but limiting reroutes. The pilots and ATC can only go through so many changes before you are just tempting the odds for an error. We had aircraft; not even an hour into their flight; on their 4th reroute.
Data retrieved from NASA's ASRS site as of April 2012 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.