TCAS ii RA caused altitude deviation.

Attributes
ACN	172706
Time
Date	199103
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : slc
State Reference	UT
Altitude	msl bound lower : 16000 msl bound upper : 16280
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zlc
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 180 flight time total : 5800 flight time type : 1700
ASRS Report	172706
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Miss Distance	horizontal : 3000 vertical : 1000
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

After taking off runway 16R at slc and north of the airport heading east level at 16000', a traffic advisory was called out by TCAS ii at 9 O'clock and closing fast. It was an medium large transport climbing to 15000'. An RA was announced by TCAS ii and was resolved by following a climb command to 16280'. We then descended back to 16000'. ZLC advised the medium large transport did not exceed 15000' and that we were never shown off altitude. The medium large transport appeared to level off suddenly (from a high rate of climb) at 15000'. The medium large transport passed from left to right well in front of us.

Original NASA ASRS Text

Title: TCAS II RA CAUSED ALT DEVIATION.

Narrative: AFTER TAKING OFF RWY 16R AT SLC AND N OF THE ARPT HDG E LEVEL AT 16000', A TFC ADVISORY WAS CALLED OUT BY TCAS II AT 9 O'CLOCK AND CLOSING FAST. IT WAS AN MLG CLBING TO 15000'. AN RA WAS ANNOUNCED BY TCAS II AND WAS RESOLVED BY FOLLOWING A CLB COMMAND TO 16280'. WE THEN DSNDED BACK TO 16000'. ZLC ADVISED THE MLG DID NOT EXCEED 15000' AND THAT WE WERE NEVER SHOWN OFF ALT. THE MLG APPEARED TO LEVEL OFF SUDDENLY (FROM A HIGH RATE OF CLB) AT 15000'. THE MLG PASSED FROM LEFT TO RIGHT WELL IN FRONT OF US.

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.