F100 experienced TCASII TA RA after sighting traffic and accepting visual separation clearance with ...

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.

F100 experienced TCASII TA RA after sighting traffic and accepting visual separation clearance with ZNY at 14000 ft.