 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Regional air carrier PIC report on his interpretation of TCASII performance with opposite direction descending traffic. Reporter is a non- believer of TCASII logic and performance, ie, other reports.
| Attributes | |
| ACN | 297145 |
| Time | |
| Date | 199502 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : vhp |
| State Reference | IN |
| Altitude | msl bound lower : 27000 msl bound upper : 27700 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid tower : dpa |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 270 flight time total : 11500 flight time type : 1800 |
| ASRS Report | 297145 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa |
| Resolutory Action | flight crew : took evasive action none taken : anomaly accepted |
| Consequence | Other |
| Miss Distance | horizontal : 30000 vertical : 1000 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
In climb out out of FL275 ft got a traffic, traffic aural message. We pulled up TCASII page on multifunction display. Yellow descending target 11 O'clock and 8 mi. I questioned center, was told it was a DC9 descending to FL290. I acquired aircraft visually. At FL277 in our leveloff got RA, 'descend.' we did not! Next, 'monitor vertical speed' finally, 'clear of conflict.' the reason no evasive action was taken was due to visual sighting of aircraft. Looks like another screw up by collins TCASII.
Original NASA ASRS Text
Title: REGIONAL ACR PIC RPT ON HIS INTERP OF TCASII PERFORMANCE WITH OPPOSITE DIRECTION DSNDING TFC. RPTR IS A NON- BELIEVER OF TCASII LOGIC AND PERFORMANCE, IE, OTHER RPTS.
Narrative: IN CLBOUT OUT OF FL275 FT GOT A TFC, TFC AURAL MESSAGE. WE PULLED UP TCASII PAGE ON MULTIFUNCTION DISPLAY. YELLOW DSNDING TARGET 11 O'CLOCK AND 8 MI. I QUESTIONED CTR, WAS TOLD IT WAS A DC9 DSNDING TO FL290. I ACQUIRED ACFT VISUALLY. AT FL277 IN OUR LEVELOFF GOT RA, 'DSND.' WE DID NOT! NEXT, 'MONITOR VERT SPD' FINALLY, 'CLR OF CONFLICT.' THE REASON NO EVASIVE ACTION WAS TAKEN WAS DUE TO VISUAL SIGHTING OF ACFT. LOOKS LIKE ANOTHER SCREW UP BY COLLINS TCASII.
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.