First officer of a medium large transport type aircraft overshot crossing altitude, deviated from assigned track and received a TCASII alert due to not complying with assigned clearance.

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Attributes
ACN	206743
Time
Date	199204
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : las
State Reference	NV
Altitude	msl bound lower : 12000 msl bound upper : 14000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	enroute airway : zla
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 6500 flight time type : 800
ASRS Report	206743
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : crossing restriction not met conflict : airborne less severe other anomaly other other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After being given a crossing restriction I realized that I would be unable to comply. When I told the captain he tried to call to get relief, but the frequency was very busy and we could not get through until a few mi from the intersection 2000 ft high. We were told to hold altitude, at the same time we had a TCASII alert and RA not to descend. We did not see the conflicting traffic. While looking for traffic I went off course, but quickly corrected after conflict was clear.

Original NASA ASRS Text

Title: FO OF A MLG TYPE ACFT OVERSHOT XING ALT, DEVIATED FROM ASSIGNED TRACK AND RECEIVED A TCASII ALERT DUE TO NOT COMPLYING WITH ASSIGNED CLRNC.

Narrative: AFTER BEING GIVEN A XING RESTRICTION I REALIZED THAT I WOULD BE UNABLE TO COMPLY. WHEN I TOLD THE CAPT HE TRIED TO CALL TO GET RELIEF, BUT THE FREQ WAS VERY BUSY AND WE COULD NOT GET THROUGH UNTIL A FEW MI FROM THE INTXN 2000 FT HIGH. WE WERE TOLD TO HOLD ALT, AT THE SAME TIME WE HAD A TCASII ALERT AND RA NOT TO DSND. WE DID NOT SEE THE CONFLICTING TFC. WHILE LOOKING FOR TFC I WENT OFF COURSE, BUT QUICKLY CORRECTED AFTER CONFLICT WAS CLR.

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.