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Air carrier large transport altitude deviation excursion from clearance altitude in response to TCAS ii RA.
| Attributes | |
| ACN | 172537 |
| Time | |
| Date | 199103 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dfw |
| State Reference | TX |
| Altitude | msl bound lower : 11000 msl bound upper : 11400 |
| 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 | cruise other |
| Route In Use | arrival star : star |
| 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 : 20000 |
| ASRS Report | 172537 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 14000 |
| ASRS Report | 172535 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
TCAS gave us an RA command to climb. Climb command was 500-1000 FPM. We were level at assigned 11000' MSL. Departing aircraft was climbing to 10000'. We had a visibility on the other aircraft, but followed the TCAS command to 11400'. RA ceased. We returned to 11000'. Advised approach of the occurrence. No safety of flight condition existed.
Original NASA ASRS Text
Title: ACR LGT ALT DEVIATION EXCURSION FROM CLRNC ALT IN RESPONSE TO TCAS II RA.
Narrative: TCAS GAVE US AN RA COMMAND TO CLB. CLB COMMAND WAS 500-1000 FPM. WE WERE LEVEL AT ASSIGNED 11000' MSL. DEPARTING ACFT WAS CLBING TO 10000'. WE HAD A VIS ON THE OTHER ACFT, BUT FOLLOWED THE TCAS COMMAND TO 11400'. RA CEASED. WE RETURNED TO 11000'. ADVISED APCH OF THE OCCURRENCE. NO SAFETY OF FLT CONDITION EXISTED.
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.