TCASII TA RA. Air carrier X excursion from assigned altitude. Pilot deviation.

Attributes
ACN	207341
Time
Date	199204
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : sax
State Reference	NY
Altitude	msl bound lower : 16000 msl bound upper : 17300
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zny tower : pit
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 8000 flight time type : 3000
ASRS Report	207341
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 16000 flight time type : 4500
ASRS Report	207201
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 600
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Level at 16000 ft after departure from lga air carrier X was receiving departure vectors from center controller. Observed traffic indicated on TCASII and heard the aural traffic warning. Aircraft was converging from below. TCASII RA then commanded a 1500 FPM climb. Pitched the aircraft to approximately 1800 FPM and left ATC assigned altitude of 16000 ft. TCASII reported clear of conflict at approximately 17300 ft. The captain advised ATC of the TCASII event. The controller reassigned us 17000 ft, continued normally to destination. Looks like ATC error, but the controller didn't seem too concerned. Probably would have been much different outcome if not for TCASII. Never received ATC advisory of traffic. Supplemental information from acn 207201: TCASII showed 600 ft below and 1 mi to my left.

Original NASA ASRS Text

Title: TCASII TA RA. ACR X EXCURSION FROM ASSIGNED ALT. PLTDEV.

Narrative: LEVEL AT 16000 FT AFTER DEP FROM LGA ACR X WAS RECEIVING DEP VECTORS FROM CTR CTLR. OBSERVED TFC INDICATED ON TCASII AND HEARD THE AURAL TFC WARNING. ACFT WAS CONVERGING FROM BELOW. TCASII RA THEN COMMANDED A 1500 FPM CLB. PITCHED THE ACFT TO APPROX 1800 FPM AND LEFT ATC ASSIGNED ALT OF 16000 FT. TCASII RPTED CLR OF CONFLICT AT APPROX 17300 FT. THE CAPT ADVISED ATC OF THE TCASII EVENT. THE CTLR REASSIGNED US 17000 FT, CONTINUED NORMALLY TO DEST. LOOKS LIKE ATC ERROR, BUT THE CTLR DIDN'T SEEM TOO CONCERNED. PROBABLY WOULD HAVE BEEN MUCH DIFFERENT OUTCOME IF NOT FOR TCASII. NEVER RECEIVED ATC ADVISORY OF TFC. SUPPLEMENTAL INFO FROM ACN 207201: TCASII SHOWED 600 FT BELOW AND 1 MI TO MY L.

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.