An air carrier B747 climbed in response to a TCASII command.

Attributes
ACN	358311
Time
Date	199701
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : las airport : lax
State Reference	CA
Altitude	msl bound lower : 10500 msl bound upper : 11500
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : lax
Operator	common carrier : air carrier
Make Model Name	B747 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	descent : approach
Route In Use	approach : straight in
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 90 flight time total : 15000
ASRS Report	358311
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 18000 flight time type : 1000
ASRS Report	357657
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : far non adherence : published procedure other anomaly other other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	vertical : 300
Supplementary
Air Traffic Incident	other

Narrative:

Lax approach advised of aircraft at 10200 ft. Upon receiving TCASII alert, our aircraft was placed into a climb attitude up to approximately 11500 ft. We did not make a visual contact with other aircraft. Supplement al information from acn 357657: I executed an emergency climb with mct from 10500 ft to 11500 ft.

Original NASA ASRS Text

Title: AN ACR B747 CLBED IN RESPONSE TO A TCASII COMMAND.

Narrative: LAX APCH ADVISED OF ACFT AT 10200 FT. UPON RECEIVING TCASII ALERT, OUR ACFT WAS PLACED INTO A CLB ATTITUDE UP TO APPROX 11500 FT. WE DID NOT MAKE A VISUAL CONTACT WITH OTHER ACFT. SUPPLEMENT AL INFO FROM ACN 357657: I EXECUTED AN EMER CLB WITH MCT FROM 10500 FT TO 11500 FT.

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.