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ARTCC radar controller descended an IFR LR31 from 4500 ft to 3000 ft. The reporter claims the altitude is below the minimum IFR altitude.
| Attributes | |
| ACN | 392431 |
| Time | |
| Date | 199801 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : sgd airport : apc |
| State Reference | CA |
| Altitude | msl bound lower : 3000 msl bound upper : 4500 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Night |
| Aircraft 1 | |
| Operator | general aviation : corporate |
| Make Model Name | Learjet 25 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 3 flight time total : 150 |
| ASRS Report | 392431 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : flight data |
| Qualification | controller : developmental |
| Experience | controller radar : 3 |
| ASRS Report | 392268 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
As usual at our understaffed facility, I was forced to work a complex and busy traffic rush without any assistance. As a result I descended the aircraft below an appropriate minimum IFR altitude. Due to traffic at 5000 ft and 4000 ft, I descended the aircraft to 3000 ft in an mia area of 4500 ft. The highest terrain in the area is at 2500 ft.
Original NASA ASRS Text
Title: ARTCC RADAR CTLR DSNDED AN IFR LR31 FROM 4500 FT TO 3000 FT. THE RPTR CLAIMS THE ALT IS BELOW THE MINIMUM IFR ALT.
Narrative: AS USUAL AT OUR UNDERSTAFFED FACILITY, I WAS FORCED TO WORK A COMPLEX AND BUSY TFC RUSH WITHOUT ANY ASSISTANCE. AS A RESULT I DSNDED THE ACFT BELOW AN APPROPRIATE MINIMUM IFR ALT. DUE TO TFC AT 5000 FT AND 4000 FT, I DSNDED THE ACFT TO 3000 FT IN AN MIA AREA OF 4500 FT. THE HIGHEST TERRAIN IN THE AREA IS AT 2500 FT.
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.