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On descent, a DC9-30 flight crew received a VFR TA from ATC along with a descend RA from the TCASII.
| Attributes | |
| ACN | 488310 |
| Time | |
| Date | 200010 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | intersection : druzz |
| State Reference | VA |
| Altitude | msl bound lower : 11000 msl bound upper : 13000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc tower : pwk.tower |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 30 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | descent : vacating altitude |
| Route In Use | arrival star : bucko.jasen 2 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zdc.artcc |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise : level |
| Flight Plan | VFR |
| 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 : 15000 flight time type : 10000 |
| ASRS Report | 488310 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne critical non adherence : required legal separation non adherence : far |
| Independent Detector | aircraft equipment : tcas other controllera |
| Resolutory Action | controller : issued advisory |
| Miss Distance | horizontal : 6000 |
| Supplementary | |
| Problem Areas | Aircraft Airspace Structure ATC Human Performance |
Narrative:
ZDC reported VFR traffic 12 O'clock position at 12800 ft, which is not a correct altitude for VFR cruise. We were descending out of 14000 ft to make a crossing fix at 11000 ft. I leveled at 13000 ft and then received an RA from TCASII to 'descend, descend,' which we complied with and descended to the 11000 ft at 1500 FPM. We never saw traffic, it was clear and 20 mi outside, looked like about 1 mi horizontal on TCASII. I reported RA to ZDC.
Original NASA ASRS Text
Title: ON DSCNT, A DC9-30 FLC RECEIVED A VFR TA FROM ATC ALONG WITH A DSND RA FROM THE TCASII.
Narrative: ZDC RPTED VFR TFC 12 O'CLOCK POS AT 12800 FT, WHICH IS NOT A CORRECT ALT FOR VFR CRUISE. WE WERE DSNDING OUT OF 14000 FT TO MAKE A XING FIX AT 11000 FT. I LEVELED AT 13000 FT AND THEN RECEIVED AN RA FROM TCASII TO 'DSND, DSND,' WHICH WE COMPLIED WITH AND DSNDED TO THE 11000 FT AT 1500 FPM. WE NEVER SAW TFC, IT WAS CLR AND 20 MI OUTSIDE, LOOKED LIKE ABOUT 1 MI HORIZ ON TCASII. I RPTED RA TO ZDC.
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.