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ZID controller experienced operational error at FL350 when separation plans were based upon incorrect information in the data block.
| Attributes | |
| ACN | 666253 |
| Time | |
| Date | 200507 |
| Place | |
| Locale Reference | navaid : lvt.vortac |
| State Reference | TN |
| Altitude | msl single value : 35000 |
| 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 |
| Navigation In Use | other vortac |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller limited radar : 2 controller non radar : 1 controller radar : 17.5 |
| ASRS Report | 666253 |
| 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 : 800 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
B737 was climbing to FL330 requesting FL370. On initial call-up; I inadvertently climbed B737 to FL350 which was the same altitude of the traffic I was trying to miss (air carrier Y). B737 was already past the traffic and not an imminent threat before mode C revealed that I had issued a different altitude than that which was entered in the data block.
Original NASA ASRS Text
Title: ZID CTLR EXPERIENCED OPERROR AT FL350 WHEN SEPARATION PLANS WERE BASED UPON INCORRECT INFO IN THE DATA BLOCK.
Narrative: B737 WAS CLBING TO FL330 REQUESTING FL370. ON INITIAL CALL-UP; I INADVERTENTLY CLBED B737 TO FL350 WHICH WAS THE SAME ALT OF THE TFC I WAS TRYING TO MISS (ACR Y). B737 WAS ALREADY PAST THE TFC AND NOT AN IMMINENT THREAT BEFORE MODE C REVEALED THAT I HAD ISSUED A DIFFERENT ALT THAN THAT WHICH WAS ENTERED IN THE DATA BLOCK.
Data retrieved from NASA's ASRS site as of January 2009 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.