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An large transport air carrier responded to a TCASII command to descend. Approach control wanted a climb.
| Attributes | |
| ACN | 224815 |
| Time | |
| Date | 199210 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : ont |
| State Reference | CA |
| Altitude | msl bound lower : 5500 msl bound upper : 6000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ont |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | cruise other descent other |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 10000 |
| ASRS Report | 224815 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
We were at 6000 ft being vectored for the approach. The controller said he had traffic and told us to climb. As soon as he said that, we had a TCASII alert which told us to descend. Told this to the controller, and he said 'ok, then descend!' within a few seconds, we had a visual and a clear of traffic. The controller had us just continue descent and proceed as normal.
Original NASA ASRS Text
Title: AN LGT ACR RESPONDED TO A TCASII COMMAND TO DSND. APCH CTL WANTED A CLB.
Narrative: WE WERE AT 6000 FT BEING VECTORED FOR THE APCH. THE CTLR SAID HE HAD TFC AND TOLD US TO CLB. AS SOON AS HE SAID THAT, WE HAD A TCASII ALERT WHICH TOLD US TO DSND. TOLD THIS TO THE CTLR, AND HE SAID 'OK, THEN DSND!' WITHIN A FEW SECONDS, WE HAD A VISUAL AND A CLR OF TFC. THE CTLR HAD US JUST CONTINUE DSCNT AND PROCEED AS NORMAL.
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.