Altitude deviation altitude excursion in evasive action climb after TCASII RA.

Attributes
ACN	239656
Time
Date	199304
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : teb
State Reference	NJ
Altitude	msl bound lower : 3000 msl bound upper : 3800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90
Operator	general aviation : corporate
Make Model Name	Medium Transport
Flight Phase	cruise other descent : approach
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude cruise other
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 40 flight time total : 11000 flight time type : 1100
ASRS Report	239656
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While flying the VOR-DME a approach to teb, the TCASII gave us a TA on an aircraft departing lincoln park airport. No evasive action was taken at this point. The same target appeared to turn towards us and continued to climb. At this point I had lost visual contact with it and the TCASII gave us an RA with a command to climb. We followed the command and climbed to 3800 ft before 'clear of conflict' was issued. ATC was advised and we returned to the assigned altitude as soon as possible. I am fairly certain that the TA and RA were caused by the same aircraft. However, I wonder if the RA may have been caused by a technician doing a static system/transponder check at lincoln park airport?

Original NASA ASRS Text

Title: ALTDEV ALT EXCURSION IN EVASIVE ACTION CLB AFTER TCASII RA.

Narrative: WHILE FLYING THE VOR-DME A APCH TO TEB, THE TCASII GAVE US A TA ON AN ACFT DEPARTING LINCOLN PARK ARPT. NO EVASIVE ACTION WAS TAKEN AT THIS POINT. THE SAME TARGET APPEARED TO TURN TOWARDS US AND CONTINUED TO CLB. AT THIS POINT I HAD LOST VISUAL CONTACT WITH IT AND THE TCASII GAVE US AN RA WITH A COMMAND TO CLB. WE FOLLOWED THE COMMAND AND CLBED TO 3800 FT BEFORE 'CLR OF CONFLICT' WAS ISSUED. ATC WAS ADVISED AND WE RETURNED TO THE ASSIGNED ALT ASAP. I AM FAIRLY CERTAIN THAT THE TA AND RA WERE CAUSED BY THE SAME ACFT. HOWEVER, I WONDER IF THE RA MAY HAVE BEEN CAUSED BY A TECHNICIAN DOING A STATIC SYS/XPONDER CHK AT LINCOLN PARK ARPT?

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.