An A320 first officer, PF, failed to turn in time, causing a momentary TCASII RA, in N90 airspace.

Attributes
ACN	510470
Time
Date	200105
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lga.airport
State Reference	NY
Altitude	msl bound lower : 8000 msl bound upper : 10000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : n90.tower
Operator	common carrier : air carrier
Make Model Name	A320
Flight Phase	descent : intermediate altitude
Route In Use	arrival : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 9700 flight time type : 700
ASRS Report	510470
Events
Anomaly	conflict : airborne less severe non adherence : far non adherence : clearance non adherence : company policies other spatial deviation
Resolutory Action	none taken : anomaly accepted
Miss Distance	horizontal : 15000 vertical : 0
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Descending into the new york area, new york approach cleared us to descend to 8000 ft, heading 190 degrees. I heard 120 degrees and mistook the 190 degrees. As we leveled off, I saw a turboprop commuter on our left side. I notified the captain who also had visual. I initiated a right turn. In the turn we received a TA. Shortly after, a brief RA. The turboprop was in sight. No abrupt evasive maneuver was taken. ATC then issued a right turn to 210 degrees. The problem arose when the flight crew was in the process of an approach brief, descent checklist, and passenger PA. Being interrupted by ATC many times delayed our progress and we were unable to complete all items by 10000 ft. As we continued, we divided our attention between ATC instructions and checklists. A corrective action would be to begin approach brief earlier.

Original NASA ASRS Text

Title: AN A320 FO, PF, FAILED TO TURN IN TIME, CAUSING A MOMENTARY TCASII RA, IN N90 AIRSPACE.

Narrative: DSNDING INTO THE NEW YORK AREA, NEW YORK APCH CLRED US TO DSND TO 8000 FT, HDG 190 DEGS. I HEARD 120 DEGS AND MISTOOK THE 190 DEGS. AS WE LEVELED OFF, I SAW A TURBOPROP COMMUTER ON OUR L SIDE. I NOTIFIED THE CAPT WHO ALSO HAD VISUAL. I INITIATED A R TURN. IN THE TURN WE RECEIVED A TA. SHORTLY AFTER, A BRIEF RA. THE TURBOPROP WAS IN SIGHT. NO ABRUPT EVASIVE MANEUVER WAS TAKEN. ATC THEN ISSUED A R TURN TO 210 DEGS. THE PROB AROSE WHEN THE FLT CREW WAS IN THE PROCESS OF AN APCH BRIEF, DSCNT CHKLIST, AND PAX PA. BEING INTERRUPTED BY ATC MANY TIMES DELAYED OUR PROGRESS AND WE WERE UNABLE TO COMPLETE ALL ITEMS BY 10000 FT. AS WE CONTINUED, WE DIVIDED OUR ATTN BTWN ATC INSTRUCTIONS AND CHKLISTS. A CORRECTIVE ACTION WOULD BE TO BEGIN APCH BRIEF EARLIER.

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.