Altitude deviation altitude excursion in flight crew pilot response to TCASII RA.

Attributes
ACN	214057
Time
Date	199206
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lga
State Reference	NY
Altitude	msl bound lower : 10000 msl bound upper : 10500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	descent other
Route In Use	enroute airway : n90
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 200 flight time total : 2800 flight time type : 200
ASRS Report	214057
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	vertical : 1000
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation other

Narrative:

Flight tpa to lga, jun/sun/92, approximately PM45 local, 31 NM southwest of lga. During descent to assigned altitude, at 10000 ft MSL, ATC reported traffic at 12 O'clock and 9500 MSL. We reported negative contact. Passing 10300 in descent received TCASII TA followed almost immediately by an RA (apparently from the previously called traffic). TCASII commanded a 2000 FPM climb. We climbed back to 10500 and received 'clear of conflict' from TCASII. Advised ATC of situation and altitude deviation. We never had visual contact with traffic.

Original NASA ASRS Text

Title: ALTDEV ALT EXCURSION IN FLC PLT RESPONSE TO TCASII RA.

Narrative: FLT TPA TO LGA, JUN/SUN/92, APPROX PM45 LCL, 31 NM SW OF LGA. DURING DSCNT TO ASSIGNED ALT, AT 10000 FT MSL, ATC RPTED TFC AT 12 O'CLOCK AND 9500 MSL. WE RPTED NEGATIVE CONTACT. PASSING 10300 IN DSCNT RECEIVED TCASII TA FOLLOWED ALMOST IMMEDIATELY BY AN RA (APPARENTLY FROM THE PREVIOUSLY CALLED TFC). TCASII COMMANDED A 2000 FPM CLB. WE CLBED BACK TO 10500 AND RECEIVED 'CLR OF CONFLICT' FROM TCASII. ADVISED ATC OF SITUATION AND ALTDEV. WE NEVER HAD VISUAL CONTACT WITH TFC.

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.