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Air carrier medium large transport altitude deviation excursion from clearance altitude in response to TCASII RA.
| Attributes | |
| ACN | 191922 |
| Time | |
| Date | 199110 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : bpr airport : dfw |
| State Reference | TX |
| Altitude | msl bound lower : 11000 msl bound upper : 11500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dfw |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 10800 flight time type : 3000 |
| ASRS Report | 191922 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Miss Distance | horizontal : 100 vertical : 1400 |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
Approaching dfw at 11000 ATC called out traffic at 12 O'clock climbing to level at 10000 ft. We received a TA followed by an RA on the TCASII. We followed the TCASII and climbed to 11500 until clear of the RA and advised ATC, then returned to 11000 ft and was given a descent to 6000 ft. ATC advised us that we did not need to change altitude because the aircraft was to level at 10000 ft. We changed altitude as per our TCASII procedure. In the jumpseat was an ATC controller from den center who also witnessed the event. The #1 flight attendant said that from the cabin he saw what appeared to be an air carrier medium large transport Y at about 1000 ft away and to our right.
Original NASA ASRS Text
Title: ACR MLG ALTDEV EXCURSION FROM CLRNC ALT IN RESPONSE TO TCASII RA.
Narrative: APCHING DFW AT 11000 ATC CALLED OUT TFC AT 12 O'CLOCK CLBING TO LEVEL AT 10000 FT. WE RECEIVED A TA FOLLOWED BY AN RA ON THE TCASII. WE FOLLOWED THE TCASII AND CLBED TO 11500 UNTIL CLR OF THE RA AND ADVISED ATC, THEN RETURNED TO 11000 FT AND WAS GIVEN A DSCNT TO 6000 FT. ATC ADVISED US THAT WE DID NOT NEED TO CHANGE ALT BECAUSE THE ACFT WAS TO LEVEL AT 10000 FT. WE CHANGED ALT AS PER OUR TCASII PROC. IN THE JUMPSEAT WAS AN ATC CTLR FROM DEN CENTER WHO ALSO WITNESSED THE EVENT. THE #1 FLT ATTENDANT SAID THAT FROM THE CABIN HE SAW WHAT APPEARED TO BE AN ACR MLG Y AT ABOUT 1000 FT AWAY AND TO OUR R.
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.