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Captain of air carrier large transport aircraft deviated from assigned altitude in response to a TCASII RA warning and compounded the conflict.
| Attributes | |
| ACN | 205543 |
| Time | |
| Date | 199203 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : bpr airport : dfw |
| State Reference | TX |
| Altitude | msl bound lower : 10400 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dfw |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | descent : approach |
| Route In Use | arrival other arrival star : star enroute airway : dfw |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 15000 |
| ASRS Report | 295543 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 190 flight time total : 9200 |
| ASRS Report | 205535 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance non adherence : required legal separation other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On boids 2 arrival into dfw at 11000 ft, TCASII first gave a TA then followed immediately with an RA. As I followed the RA call to descend I asked the first officer to notify approach. Approach advised us to climb back to 11000 as we had head-on traffic at 10000. At this time the TCASII gave another RA to climb, in its present confign the use of TCASII is dangerous! It will call for a climb or descent when aircraft have legal separation and are not in danger of colliding.
Original NASA ASRS Text
Title: CAPT OF ACR LGT ACFT DEVIATED FROM ASSIGNED ALT IN RESPONSE TO A TCASII RA WARNING AND COMPOUNDED THE CONFLICT.
Narrative: ON BOIDS 2 ARR INTO DFW AT 11000 FT, TCASII FIRST GAVE A TA THEN FOLLOWED IMMEDIATELY WITH AN RA. AS I FOLLOWED THE RA CALL TO DSND I ASKED THE FO TO NOTIFY APCH. APCH ADVISED US TO CLB BACK TO 11000 AS WE HAD HEAD-ON TFC AT 10000. AT THIS TIME THE TCASII GAVE ANOTHER RA TO CLB, IN ITS PRESENT CONFIGN THE USE OF TCASII IS DANGEROUS! IT WILL CALL FOR A CLB OR DSCNT WHEN ACFT HAVE LEGAL SEPARATION AND ARE NOT IN DANGER OF COLLIDING.
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.