An air carrier medium large transport climbed in response to a TCASII alert.

Attributes
ACN	266532
Time
Date	199403
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : bld airport : las
State Reference	NV
Altitude	msl bound lower : 26000 msl bound upper : 26500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	cruise other descent other
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Gates Learjet Corp Undifferentiated or Other Model
Operating Under FAR Part	other : unknown
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 13500 flight time type : 5000
ASRS Report	266532
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	vertical : 1000
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

We were given clearance to descend and maintain FL260. A lear jet was called at 2 O'clock climbing to maintain FL250. As he leveled, TCASII gave 'climb' RA. We initiated a 1500 FPM climb in response. TCASII RA was resolved as we reached FL265. Returned to FL260 and advised center.

Original NASA ASRS Text

Title: AN ACR MLG CLBED IN RESPONSE TO A TCASII ALERT.

Narrative: WE WERE GIVEN CLRNC TO DSND AND MAINTAIN FL260. A LEAR JET WAS CALLED AT 2 O'CLOCK CLBING TO MAINTAIN FL250. AS HE LEVELED, TCASII GAVE 'CLB' RA. WE INITIATED A 1500 FPM CLB IN RESPONSE. TCASII RA WAS RESOLVED AS WE REACHED FL265. RETURNED TO FL260 AND ADVISED CTR.

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.