Altitude deviation altitude excursion in evasive action climb after TCASII RA.

Attributes
ACN	239822
Time
Date	199304
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : zme
State Reference	TN
Altitude	msl bound lower : 29000 msl bound upper : 29400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zme artcc : zau
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
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 6800
ASRS Report	239822
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
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 56000 vertical : 900
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

I was first officer on flight dfw-bos. In cruise at FL290, TCASII gave TA, traffic at 12 O'clock, 10 mi showed 900 ft below our altitude. Approximately 5 seconds later, TCASII gave RA requiring climb of plus or minus 1200 FPM. Initiated climb. Maximum altitude plus or minus 29400 ft. Returned to FL290 when RA satisfied. Controllers issued traffic before TA or RA but we did not have traffic in sight. Procedures require us to follow RA's.

Original NASA ASRS Text

Title: ALTDEV ALT EXCURSION IN EVASIVE ACTION CLB AFTER TCASII RA.

Narrative: I WAS FO ON FLT DFW-BOS. IN CRUISE AT FL290, TCASII GAVE TA, TFC AT 12 O'CLOCK, 10 MI SHOWED 900 FT BELOW OUR ALT. APPROX 5 SECONDS LATER, TCASII GAVE RA REQUIRING CLB OF PLUS OR MINUS 1200 FPM. INITIATED CLB. MAX ALT PLUS OR MINUS 29400 FT. RETURNED TO FL290 WHEN RA SATISFIED. CTLRS ISSUED TFC BEFORE TA OR RA BUT WE DID NOT HAVE TFC IN SIGHT. PROCS REQUIRE US TO FOLLOW RA'S.

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.