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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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MD80S aircraft on arrival received TCASII RA and followed command descending 600 ft below assigned altitude. Approach controller called traffic and flight crew advised of altitude deviation.
| Attributes | |
| ACN | 371838 |
| Time | |
| Date | 199706 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : byp airport : dfw |
| State Reference | TX |
| Altitude | msl bound lower : 10400 msl bound upper : 11000 |
| Aircraft 1 | |
| Controlling Facilities | tracon : dfw |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other descent other |
| Route In Use | arrival other arrival star : star enroute airway : dfw |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 371838 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| ASRS Report | 371910 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude altitude deviation : undershoot conflict : airborne less severe non adherence : clearance other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Deviation |
Narrative:
We were on the northeast arrival into dfw, level at 11000 ft. Approach control called traffic at 12 O'clock climbing. TCASII annunciated traffic and then commanded descend. We followed the commands and then returned to our altitude. The lowest point of our descent was approximately 10400 ft.
Original NASA ASRS Text
Title: MD80S ACFT ON ARR RECEIVED TCASII RA AND FOLLOWED COMMAND DSNDING 600 FT BELOW ASSIGNED ALT. APCH CTLR CALLED TFC AND FLC ADVISED OF ALTDEV.
Narrative: WE WERE ON THE NE ARR INTO DFW, LEVEL AT 11000 FT. APCH CTL CALLED TFC AT 12 O'CLOCK CLBING. TCASII ANNUNCIATED TFC AND THEN COMMANDED DSND. WE FOLLOWED THE COMMANDS AND THEN RETURNED TO OUR ALT. THE LOWEST POINT OF OUR DSCNT WAS APPROX 10400 FT.
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.