 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
ZID controller transposes altitude and descends a PA31 into conflict with another lower PA31.
| Attributes | |
| ACN | 529017 |
| Time | |
| Date | 200111 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zid.artcc |
| State Reference | IN |
| Altitude | msl bound lower : 6000 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | general aviation : personal |
| Make Model Name | PA-31 Navajo Chieftan/Mojave/Navajo T1020 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air taxi |
| Make Model Name | PA-31 Navajo Chieftan/Mojave/Navajo T1020 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 6.5 controller time certified in position1 : 6.5 |
| ASRS Report | 529017 |
| Person 2 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert |
| Resolutory Action | none taken : detected after the fact |
| Miss Distance | horizontal : 16896 vertical : 200 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Aircraft X asked for lower. Descended aircraft X to 6000 ft from 8000 ft. Aircraft Y was at 7000 ft. Thought I saw 9000 ft in data block.
Original NASA ASRS Text
Title: ZID CTLR TRANSPOSES ALT AND DSNDS A PA31 INTO CONFLICT WITH ANOTHER LOWER PA31.
Narrative: ACFT X ASKED FOR LOWER. DSNDED ACFT X TO 6000 FT FROM 8000 FT. ACFT Y WAS AT 7000 FT. THOUGHT I SAW 9000 FT IN DATA BLOCK.
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.