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Approach cleared large transport to descend to 8000'. At 9700' told large transport to climb to 11,000', then issued traffic of small transport at 9000'.
| Attributes | |
| ACN | 116992 |
| Time | |
| Date | 198907 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : mrb |
| State Reference | WV |
| Altitude | msl bound lower : 9700 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bwi |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 160 flight time total : 3000 flight time type : 250 |
| ASRS Report | 116992 |
| 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 controllera other flight crewa |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Miss Distance | horizontal : 18000 vertical : 700 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
We received clearance to descend from 15,000' to 8000' on our descent into bwi from washington approach. As we passed 9700' the controller told us to climb immediately to 11,000', which we did. He called traffic of an small transport at 9000' at 12 O'clock (looked like about 3 mi away). We did not get close enough to classify as a near midair. The controller said it was his mistake, not ours, and that he had in fact issued the descent clearance to us.
Original NASA ASRS Text
Title: APCH CLEARED LGT TO DESCEND TO 8000'. AT 9700' TOLD LGT TO CLIMB TO 11,000', THEN ISSUED TRAFFIC OF SMT AT 9000'.
Narrative: WE RECEIVED CLRNC TO DSND FROM 15,000' TO 8000' ON OUR DSCNT INTO BWI FROM WASHINGTON APCH. AS WE PASSED 9700' THE CTLR TOLD US TO CLIMB IMMEDIATELY TO 11,000', WHICH WE DID. HE CALLED TFC OF AN SMT AT 9000' AT 12 O'CLOCK (LOOKED LIKE ABOUT 3 MI AWAY). WE DID NOT GET CLOSE ENOUGH TO CLASSIFY AS A NEAR MIDAIR. THE CTLR SAID IT WAS HIS MISTAKE, NOT OURS, AND THAT HE HAD IN FACT ISSUED THE DSCNT CLRNC TO US.
Data retrieved from NASA's ASRS site as of August 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.