Altitude deviation altitude excursion due to TCASII RA.

Attributes
ACN	204888
Time
Date	199203
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : buf
State Reference	NY
Altitude	msl bound lower : 4000 msl bound upper : 4600
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : buf
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time total : 13500
ASRS Report	204888
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : crossing restriction not met 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	Aircraft
Air Traffic Incident	Pilot Deviation other

Narrative:

We were cleared to 4000 ft and were level when we received a 'TA' followed by a RA to climb. We did climb until we received a 'clear of traffic.' we were in the clouds and never saw the traffic.

Original NASA ASRS Text

Title: ALTDEV ALT EXCURSION DUE TO TCASII RA.

Narrative: WE WERE CLRED TO 4000 FT AND WERE LEVEL WHEN WE RECEIVED A 'TA' FOLLOWED BY A RA TO CLB. WE DID CLB UNTIL WE RECEIVED A 'CLR OF TFC.' WE WERE IN THE CLOUDS AND NEVER SAW THE 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.