 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
F100 experienced TCASII TA RA after sighting traffic and accepting visual separation clearance with ZNY at 14000 ft.
| Attributes | |
| ACN | 620517 |
| Time | |
| Date | 200406 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : zny.artcc |
| State Reference | NJ |
| Altitude | msl bound lower : 14000 msl bound upper : 14500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90.tracon tower : mdt.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 |
| Flight Phase | climbout : intermediate altitude climbout : vacating altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : n90.tracon |
| Make Model Name | King Air 100 A/B |
| Flight Phase | cruise : level |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure |
| Independent Detector | aircraft equipment : tcas other flight crewa |
| Resolutory Action | controller : issued advisory controller : issued new clearance |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
On climb out at 14000 ft, ATC advised a VFR king air at 1 O'clock position, at 14500 ft. We called 'traffic in sight' and were cleared to 16000 ft, and 'maintain visual separation from traffic.' during the turn at coate intersection, we passed 3-4 mi behind the king air on a diverging course. We got a 'nuisance' climb TA/RA due to the speed/time algorithm in TCASII. The question is: are we bound by the same controller separation limits (ie, snitch machine) after accepting a 'maintain visual separation clearance?' we were on a clearly diverging course-line as we passed through 14500 ft.
Original NASA ASRS Text
Title: F100 EXPERIENCED TCASII TA RA AFTER SIGHTING TFC AND ACCEPTING VISUAL SEPARATION CLRNC WITH ZNY AT 14000 FT.
Narrative: ON CLBOUT AT 14000 FT, ATC ADVISED A VFR KING AIR AT 1 O'CLOCK POS, AT 14500 FT. WE CALLED 'TFC IN SIGHT' AND WERE CLRED TO 16000 FT, AND 'MAINTAIN VISUAL SEPARATION FROM TFC.' DURING THE TURN AT COATE INTXN, WE PASSED 3-4 MI BEHIND THE KING AIR ON A DIVERGING COURSE. WE GOT A 'NUISANCE' CLB TA/RA DUE TO THE SPD/TIME ALGORITHM IN TCASII. THE QUESTION IS: ARE WE BOUND BY THE SAME CTLR SEPARATION LIMITS (IE, SNITCH MACHINE) AFTER ACCEPTING A 'MAINTAIN VISUAL SEPARATION CLRNC?' WE WERE ON A CLRLY DIVERGING COURSE-LINE AS WE PASSED THROUGH 14500 FT.
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.