Altitude deviation altitude excursion in pilot response to a TCASII RA to climb.

Attributes
ACN	207999
Time
Date	199204
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : lal
State Reference	FL
Altitude	msl bound lower : 29000 msl bound upper : 29700
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zjx
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
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
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 85 flight time total : 4300 flight time type : 895
ASRS Report	207999
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe 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 : 6000 vertical : 1000
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Flight was cruising in clear air (VMC) approximately 55 NM northwest of the lakeland VOR en route to west palm beach, fl. The first officer was flying the aircraft with the aid of the autoplt. The TCASII on the first officer's panel was selected to the normal elevator position and the 14 NM range. The TCASII issued a TA followed immediately by an RA accompanied by the aural alert 'climb- climb-climb.' additionally, the TCASII guidance on the vsi instructed a climb rate of 1500 to 2000 FPM. The first officer disconnected the autoplt and began an immediate climb to comply with the TCASII guidance. The TCASII issued a 'clear of conflict' message just as all crew members located the traffic visually, an air carrier medium large transport Y. The climb was stopped at 29700 ft. ATC was immediately advised of the altitude deviation and the first officer descended aircraft to the original clearance altitude of FL290.

Original NASA ASRS Text

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

Narrative: FLT WAS CRUISING IN CLR AIR (VMC) APPROX 55 NM NW OF THE LAKELAND VOR ENRTE TO W PALM BEACH, FL. THE FO WAS FLYING THE ACFT WITH THE AID OF THE AUTOPLT. THE TCASII ON THE FO'S PANEL WAS SELECTED TO THE NORMAL ELEVATOR POS AND THE 14 NM RANGE. THE TCASII ISSUED A TA FOLLOWED IMMEDIATELY BY AN RA ACCOMPANIED BY THE AURAL ALERT 'CLB- CLB-CLB.' ADDITIONALLY, THE TCASII GUIDANCE ON THE VSI INSTRUCTED A CLB RATE OF 1500 TO 2000 FPM. THE FO DISCONNECTED THE AUTOPLT AND BEGAN AN IMMEDIATE CLB TO COMPLY WITH THE TCASII GUIDANCE. THE TCASII ISSUED A 'CLR OF CONFLICT' MESSAGE JUST AS ALL CREW MEMBERS LOCATED THE TFC VISUALLY, AN ACR MLG Y. THE CLB WAS STOPPED AT 29700 FT. ATC WAS IMMEDIATELY ADVISED OF THE ALTDEV AND THE FO DSNDED ACFT TO THE ORIGINAL CLRNC ALT OF FL290.

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.