An air carrier large transport climbed. Turned, and leveled off in response to 2 TCASII commands.

Attributes
ACN	249777
Time
Date	199308
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ilc
State Reference	NV
Altitude	msl bound lower : 31700 msl bound upper : 33000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zlc
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other cruise other
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 240 flight time total : 22000
ASRS Report	249777
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	altitude deviation : excursion from assigned altitude inflight encounter : weather non adherence : required legal separation other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 18000 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Approximately 40 east of ilc, eastbound ilc direct fam on an omega route. We requested a turn to the right to clear an area of WX. Center preferred we make the turn to the left. We made a turn to approach 080 degrees, then questioned the center (ZLC) as to when we could go right of course. He stated we were now clear of the military area and could go right of the 090 degree course. As I rolled out on my 110 degree heading, we were commanded by ZLC to make an immediate turn to 070 degrees. As we started the turn we got an RA on the TCASII to descend, descend and turn. We did. Through 32000 ft we got a TA on the TCASII of traffic at 31000 ft. We advised ATC of our TCASII RA. Stopped the descent at 31700 ft. The 33000 ft RA was resolved and we climbed back to 33000 ft. No RA on the 31000 traffic. Conflict resolved. If the controller had been just a little bit more informative (in example) 'you have air carrier nebound at 33000 ft off your right' the problem would never have developed. It is good to see that the TCASII and ATC system works when everything goes to hell.

Original NASA ASRS Text

Title: AN ACR LGT CLBED. TURNED, AND LEVELED OFF IN RESPONSE TO 2 TCASII COMMANDS.

Narrative: APPROX 40 E OF ILC, EBOUND ILC DIRECT FAM ON AN OMEGA RTE. WE REQUESTED A TURN TO THE R TO CLR AN AREA OF WX. CTR PREFERRED WE MAKE THE TURN TO THE L. WE MADE A TURN TO APCH 080 DEGS, THEN QUESTIONED THE CTR (ZLC) AS TO WHEN WE COULD GO R OF COURSE. HE STATED WE WERE NOW CLR OF THE MIL AREA AND COULD GO R OF THE 090 DEG COURSE. AS I ROLLED OUT ON MY 110 DEG HDG, WE WERE COMMANDED BY ZLC TO MAKE AN IMMEDIATE TURN TO 070 DEGS. AS WE STARTED THE TURN WE GOT AN RA ON THE TCASII TO DSND, DSND AND TURN. WE DID. THROUGH 32000 FT WE GOT A TA ON THE TCASII OF TFC AT 31000 FT. WE ADVISED ATC OF OUR TCASII RA. STOPPED THE DSCNT AT 31700 FT. THE 33000 FT RA WAS RESOLVED AND WE CLBED BACK TO 33000 FT. NO RA ON THE 31000 TFC. CONFLICT RESOLVED. IF THE CTLR HAD BEEN JUST A LITTLE BIT MORE INFORMATIVE (IN EXAMPLE) 'YOU HAVE ACR NEBOUND AT 33000 FT OFF YOUR R' THE PROB WOULD NEVER HAVE DEVELOPED. IT IS GOOD TO SEE THAT THE TCASII AND ATC SYS WORKS WHEN EVERYTHING GOES TO HELL.

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.