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TCASII RA with opposite direction traffic. Flight crew response is to perform evasive action climb. Altitude change perhaps excessive, indicating overshooting parameters as indicated by TCASII RA display annunciator.
| Attributes | |
| ACN | 298545 |
| Time | |
| Date | 199503 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : cos |
| State Reference | CO |
| Altitude | msl bound lower : 10000 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : cos tower : foe |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | cruise other |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 140 flight time total : 13300 flight time type : 2500 |
| ASRS Report | 298545 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 12000 vertical : 5000 |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While level at 10000 ft cos approach mentioned VFR traffic at 12 O'clock 2 mi at 9500 ft. We acknowledged and approximately 5 seconds later got a TCASII RA to climb. An immediate climb was made to 12000 ft and a call to ATC initiated indicating the climb. When clear of conflict we descended to 10000 ft and resumed the approach.
Original NASA ASRS Text
Title: TCASII RA WITH OPPOSITE DIRECTION TFC. FLC RESPONSE IS TO PERFORM EVASIVE ACTION CLB. ALT CHANGE PERHAPS EXCESSIVE, INDICATING OVERSHOOTING PARAMETERS AS INDICATED BY TCASII RA DISPLAY ANNUNCIATOR.
Narrative: WHILE LEVEL AT 10000 FT COS APCH MENTIONED VFR TFC AT 12 O'CLOCK 2 MI AT 9500 FT. WE ACKNOWLEDGED AND APPROX 5 SECONDS LATER GOT A TCASII RA TO CLB. AN IMMEDIATE CLB WAS MADE TO 12000 FT AND A CALL TO ATC INITIATED INDICATING THE CLB. WHEN CLR OF CONFLICT WE DSNDED TO 10000 FT AND RESUMED THE APCH.
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.