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ZID controller experienced operational error at FL290 when failing to issue an interim altitude with climbing aircraft.
| Attributes | |
| ACN | 634912 |
| Time | |
| Date | 200410 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | intersection : hacks |
| State Reference | WV |
| Altitude | msl single value : 29000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | general aviation : corporate |
| Make Model Name | British Aerospace Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : handoff position |
| Qualification | controller : radar |
| Experience | controller military : 4 controller radar : 13 |
| ASRS Report | 634912 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued alert |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 21000 vertical : 600 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Aircraft that climbed to FL290, was thought to have been stopped at FL280. Overlooked situation and aircraft climbed to FL290 into another aircraft.
Original NASA ASRS Text
Title: ZID CTLR EXPERIENCED OPERROR AT FL290 WHEN FAILING TO ISSUE AN INTERIM ALT WITH CLBING ACFT.
Narrative: ACFT THAT CLBED TO FL290, WAS THOUGHT TO HAVE BEEN STOPPED AT FL280. OVERLOOKED SIT AND ACFT CLBED TO FL290 INTO ANOTHER ACFT.
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.