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Air carrier widebody transport first officer thinks he prevented less than standard separation by questioning clearance altitude.
| Attributes | |
| ACN | 182900 |
| Time | |
| Date | 199107 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : atl |
| State Reference | GA |
| Altitude | msl bound lower : 10000 msl bound upper : 14000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : atl tower : mia |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : sid |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : commercial pilot : flight engineer pilot : instrument |
| Experience | flight time last 90 days : 100 flight time total : 5000 flight time type : 50 |
| ASRS Report | 182900 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Miss Distance | horizontal : 30000 vertical : 1000 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
After switching to departure control immediately after takeoff, we were cleared to 14000'. Approaching 10000' we were told of approaching traffic at 11000'. We then asked for verification of clearance altitude, and were told to level at 10000'. We leveled at 10000' and traffic passed by west/O incident.
Original NASA ASRS Text
Title: ACR WDB FO THINKS HE PREVENTED LESS THAN STANDARD SEPARATION BY QUESTIONING CLRNC ALT.
Narrative: AFTER SWITCHING TO DEP CTL IMMEDIATELY AFTER TKOF, WE WERE CLRED TO 14000'. APCHING 10000' WE WERE TOLD OF APCHING TFC AT 11000'. WE THEN ASKED FOR VERIFICATION OF CLRNC ALT, AND WERE TOLD TO LEVEL AT 10000'. WE LEVELED AT 10000' AND TFC PASSED BY W/O INCIDENT.
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.