Air carrier flight crew received a delayed clearance for a altitude hold which was followed by a TCASII RA. Flight crew followed the TCASII command.

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Attributes
ACN	308777
Time
Date	199506
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : bld airport : las
State Reference	NV
Altitude	msl bound lower : 12000 msl bound upper : 14000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : las
Operator	common carrier : air carrier
Make Model Name	B737-200
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Route In Use	departure other departure sid : sid enroute : on vectors enroute airway : las
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Flight Phase	cruise other
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 10000 flight time type : 6000
ASRS Report	308777
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : nmac non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	controller : issued new clearance flight crew : took evasive action other
Consequence	faa : investigated
Miss Distance	horizontal : 6000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Vectored to intercept (phx) karlo arrival southeast of bld and cleared to FL230 by departure control. Climbing through 12000 ft departure said maintain 12000 ft for traffic. I reversed climb to descend to 12000 ft and peaked about 12700 ft. At that time we got a TA while departure said turn left. I began the turn but the TA changed to an RA requesting a climb at about 3000 FPM! I again reversed our flight path in response. We passed the other aircraft at about 13000 ft with plenty of lateral separation. The RA ended about 14000 ft and ATC cleared us up to 16000 ft. Callback conversation with reporter revealed the following information: reporter (captain) reported to company. FAA liaison communicated to fleet manager's office that controller failed to take appropriate action fast enough -- she should have issued a bigger heading change, or an altitude hold, sooner. Aircraft (corp or air carrier) crossed altitude at no less than 1 mi, and other aircraft remained level. A supervisor replaced the trainee during the occurrence.

Original NASA ASRS Text

Title: ACR FLC RECEIVED A DELAYED CLRNC FOR A ALT HOLD WHICH WAS FOLLOWED BY A TCASII RA. FLC FOLLOWED THE TCASII COMMAND.

Narrative: VECTORED TO INTERCEPT (PHX) KARLO ARR SE OF BLD AND CLRED TO FL230 BY DEP CTL. CLBING THROUGH 12000 FT DEP SAID MAINTAIN 12000 FT FOR TFC. I REVERSED CLB TO DSND TO 12000 FT AND PEAKED ABOUT 12700 FT. AT THAT TIME WE GOT A TA WHILE DEP SAID TURN L. I BEGAN THE TURN BUT THE TA CHANGED TO AN RA REQUESTING A CLB AT ABOUT 3000 FPM! I AGAIN REVERSED OUR FLT PATH IN RESPONSE. WE PASSED THE OTHER ACFT AT ABOUT 13000 FT WITH PLENTY OF LATERAL SEPARATION. THE RA ENDED ABOUT 14000 FT AND ATC CLRED US UP TO 16000 FT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR (CAPT) RPTED TO COMPANY. FAA LIAISON COMMUNICATED TO FLEET MGR'S OFFICE THAT CTLR FAILED TO TAKE APPROPRIATE ACTION FAST ENOUGH -- SHE SHOULD HAVE ISSUED A BIGGER HDG CHANGE, OR AN ALT HOLD, SOONER. ACFT (CORP OR ACR) CROSSED ALT AT NO LESS THAN 1 MI, AND OTHER ACFT REMAINED LEVEL. A SUPVR REPLACED THE TRAINEE DURING THE OCCURRENCE.

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.