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TCASII RA inspires PIC of air carrier X to perform evasive action climb, resulting in altitude deviation altitude excursion.
| Attributes | |
| ACN | 186920 |
| Time | |
| Date | 199108 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dfw |
| State Reference | TX |
| Altitude | msl bound lower : 11000 msl bound upper : 11800 |
| 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 |
| Flight Phase | cruise other |
| Route In Use | arrival other arrival star : star |
| 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 |
| Route In Use | departure other departure sid : sid |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 14000 |
| ASRS Report | 186920 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 140 flight time total : 8000 |
| ASRS Report | 186770 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On boids 1 arrival into dfw, 5 mi west of arina intersection TCASII called 'traffic' on an RA alert. It then called for a 'climb' and we climbed to 11800 ft on the altimeter according to a 1500-2000 FPM rate indicated on the vertical speed indicator. When TCASII voiced 'clear of conflict' we descended back to 11000 ft which was our assigned altitude. Traffic was acquired visually at the apex of the climb.
Original NASA ASRS Text
Title: TCASII RA INSPIRES PIC OF ACR X TO PERFORM EVASIVE ACTION CLB, RESULTING IN ALT DEV ALT EXCURSION.
Narrative: ON BOIDS 1 ARR INTO DFW, 5 MI W OF ARINA INTXN TCASII CALLED 'TFC' ON AN RA ALERT. IT THEN CALLED FOR A 'CLB' AND WE CLBED TO 11800 FT ON THE ALTIMETER ACCORDING TO A 1500-2000 FPM RATE INDICATED ON THE VERT SPD INDICATOR. WHEN TCASII VOICED 'CLR OF CONFLICT' WE DSNDED BACK TO 11000 FT WHICH WAS OUR ASSIGNED ALT. TFC WAS ACQUIRED VISUALLY AT THE APEX OF THE CLB.
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.