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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Flight crew of large transport is cleared to descend to 5000 ft but passing 6500 ft controller tells them to level at 7000 ft. As they sight traffic they continue descent to avoid it and distance themselves.
| Attributes | |
| ACN | 393250 |
| Time | |
| Date | 199802 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : mdt |
| State Reference | PA |
| Altitude | msl bound lower : 5700 msl bound upper : 6500 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : har tower : pos |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : commercial pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 150 flight time total : 19000 flight time type : 3000 |
| ASRS Report | 393250 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 6000 vertical : 850 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
Having been cleared to descend to 5000 ft we were advised of VFR traffic at 6500 ft. As we passed 6500 ft the controller told us to level off at 7000 ft. At 6500 ft we sighted the light aircraft. We continued to descend to distance ourselves from the crossing traffic. Had we tried to climb back up to 7000 ft, we would have come much too close to the crossing traffic.
Original NASA ASRS Text
Title: FLC OF LGT IS CLRED TO DSND TO 5000 FT BUT PASSING 6500 FT CTLR TELLS THEM TO LEVEL AT 7000 FT. AS THEY SIGHT TFC THEY CONTINUE DSCNT TO AVOID IT AND DISTANCE THEMSELVES.
Narrative: HAVING BEEN CLRED TO DSND TO 5000 FT WE WERE ADVISED OF VFR TFC AT 6500 FT. AS WE PASSED 6500 FT THE CTLR TOLD US TO LEVEL OFF AT 7000 FT. AT 6500 FT WE SIGHTED THE LIGHT ACFT. WE CONTINUED TO DSND TO DISTANCE OURSELVES FROM THE XING TFC. HAD WE TRIED TO CLB BACK UP TO 7000 FT, WE WOULD HAVE COME MUCH TOO CLOSE TO THE XING TFC.
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.