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An MD80 flight crew descends from cruise altitude of FL270 in response to a TCASII RA from unrpted traffic 150 mi west of rod, oh.
| Attributes | |
| ACN | 504410 |
| Time | |
| Date | 200103 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : zid.artcc |
| State Reference | IN |
| Altitude | msl bound lower : 26000 msl bound upper : 27000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc tower : iad.tower |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Canadair/Bombardier Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : enroute altitude change descent : vacating altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 21000 flight time type : 3000 |
| ASRS Report | 504410 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : multi engine |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude |
| Independent Detector | aircraft equipment : tcas |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Aircraft |
Narrative:
While cruising at FL270 about 150 mi west of rod VOR, we encountered a TCASII resolution. We responded to the resolution as directed by the TCASII by descending about 1000 ft. When clear of conflict, we returned to FL270 and reported the deviation in altitude to ZID. The controller seemed indifferent to the fact we had to leave our assigned altitude and asked for no further information.
Original NASA ASRS Text
Title: AN MD80 FLC DSNDS FROM CRUISE ALT OF FL270 IN RESPONSE TO A TCASII RA FROM UNRPTED TFC 150 MI W OF ROD, OH.
Narrative: WHILE CRUISING AT FL270 ABOUT 150 MI W OF ROD VOR, WE ENCOUNTERED A TCASII RESOLUTION. WE RESPONDED TO THE RESOLUTION AS DIRECTED BY THE TCASII BY DSNDING ABOUT 1000 FT. WHEN CLR OF CONFLICT, WE RETURNED TO FL270 AND RPTED THE DEV IN ALT TO ZID. THE CTLR SEEMED INDIFFERENT TO THE FACT WE HAD TO LEAVE OUR ASSIGNED ALT AND ASKED FOR NO FURTHER INFO.
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.