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ZMP controller describes legal loss of separation at 5100 ft when incorrect phraseology was used climbing aircraft through occupied altitude.
| Attributes | |
| ACN | 718579 |
| Time | |
| Date | 200611 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zmp.artcc |
| State Reference | MN |
| Altitude | msl single value : 5100 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zmp.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 135 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zmp.artcc |
| Operator | general aviation : personal |
| Make Model Name | SR20 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 15 controller time certified in position2 : 9 flight time total : 800 |
| ASRS Report | 718579 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 10000 vertical : 700 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
The SR20 was overflying lse from the southeast. The E135 had departed lse to the southeast. After departure; the E135 was stopped at 5000 ft as the SR20 passed over at 6000 ft. The SR20 reported the E135 in sight. I asked the SR20; 'can you maintain visual separation from the E135?' the SR20 replied; 'yes.' I climbed the E135 through the SR20's altitude; and was later informed that I'd used incorrect phraseology.
Original NASA ASRS Text
Title: ZMP CTLR DESCRIBES LEGAL LOSS OF SEPARATION AT 5100 FT WHEN INCORRECT PHRASEOLOGY WAS USED CLBING ACFT THROUGH OCCUPIED ALT.
Narrative: THE SR20 WAS OVERFLYING LSE FROM THE SE. THE E135 HAD DEPARTED LSE TO THE SE. AFTER DEP; THE E135 WAS STOPPED AT 5000 FT AS THE SR20 PASSED OVER AT 6000 FT. THE SR20 RPTED THE E135 IN SIGHT. I ASKED THE SR20; 'CAN YOU MAINTAIN VISUAL SEPARATION FROM THE E135?' THE SR20 REPLIED; 'YES.' I CLBED THE E135 THROUGH THE SR20'S ALT; AND WAS LATER INFORMED THAT I'D USED INCORRECT PHRASEOLOGY.
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.