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

Attributes
ACN	124057
Time
Date	198910
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : tcc
State Reference	NM
Altitude	msl bound lower : 33000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zab
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4400 flight time type : 1400
ASRS Report	124057
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : far non adherence : required legal separation non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

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 August 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.