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Air carrier flight crew, in response to TCASII RA, descends 300 ft. When clear of traffic returns to assigned altitude.
| Attributes | |
| ACN | 437302 |
| Time | |
| Date | 199905 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | intersection : addvl |
| State Reference | TX |
| Altitude | msl bound lower : 10700 msl bound upper : 11000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : d10.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Route In Use | arrival star : wilbr two |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : d10.tracon |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 437302 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : multi engine pilot : commercial |
| Events | |
| Anomaly | conflict : airborne critical |
| Resolutory Action | flight crew : took evasive action |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Ambiguous |
Narrative:
Approaching advil intersection on arrival to dfw TCASII gave an RA to 'descend, descend.' we were assigned and level at 11000 ft and descended to 10700 ft and received 'clear of conflict.' we notified ATC and returned to 11000 ft. We did not see traffic, but suspect a 'parajump' aircraft.
Original NASA ASRS Text
Title: ACR FLC, IN RESPONSE TO TCASII RA, DSNDS 300 FT. WHEN CLR OF TFC RETURNS TO ASSIGNED ALT.
Narrative: APCHING ADVIL INTXN ON ARR TO DFW TCASII GAVE AN RA TO 'DSND, DSND.' WE WERE ASSIGNED AND LEVEL AT 11000 FT AND DSNDED TO 10700 FT AND RECEIVED 'CLR OF CONFLICT.' WE NOTIFIED ATC AND RETURNED TO 11000 FT. WE DID NOT SEE TFC, BUT SUSPECT A 'PARAJUMP' ACFT.
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.