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Less than standard separation between mdt and uga. Pilot deviation when flight crew copy wrong crossing altitude. Controller missed incorrect readback altitude. Operational error.
| Attributes | |
| ACN | 332286 |
| Time | |
| Date | 199604 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : huo |
| State Reference | NY |
| Altitude | msl bound lower : 7000 msl bound upper : 7000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zbw |
| Operator | common carrier : air carrier |
| Make Model Name | ATR 42 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 12 |
| ASRS Report | 332286 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 6300 flight time type : 2500 |
| ASRS Report | 332302 |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance non adherence : required legal separation other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 19200 vertical : 200 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
An ATR42 turboprop had been given a clearance to cross 10 NM north of the huo VOR at 8000 ft due to a single engine aircraft at 7000 ft. The pilot read back the normal clearance of 'cross 10 mi north huo at 7000 ft' and I, the radar controller, was busy and missed the incorrect pilot readback. Corrective action: pilots and controllers need to be more attentive when communicating.
Original NASA ASRS Text
Title: LTSS BTWN MDT AND UGA. PLTDEV WHEN FLC COPY WRONG XING ALT. CTLR MISSED INCORRECT READBACK ALT. OPERROR.
Narrative: AN ATR42 TURBOPROP HAD BEEN GIVEN A CLRNC TO CROSS 10 NM N OF THE HUO VOR AT 8000 FT DUE TO A SINGLE ENG ACFT AT 7000 FT. THE PLT READ BACK THE NORMAL CLRNC OF 'CROSS 10 MI N HUO AT 7000 FT' AND I, THE RADAR CTLR, WAS BUSY AND MISSED THE INCORRECT PLT READBACK. CORRECTIVE ACTION: PLTS AND CTLRS NEED TO BE MORE ATTENTIVE WHEN COMMUNICATING.
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.