Near midair collision - TCASII on approach.

Attributes
ACN	297180
Time
Date	199502
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : slc
State Reference	UT
Altitude	msl bound lower : 6000 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : slc
Operator	common carrier : air carrier
Make Model Name	B727-200
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Metro Undifferentiated or Other Model
Operating Under FAR Part	Part 135
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 6000 flight time type : 700
ASRS Report	297180
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : nmac non adherence : far
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Turning final for runway 34 at slc, tower did not notify our flight of traffic above us for a parallel runway. On final TCASII indicated traffic directly above us 200 ft higher than us and commanded a climb TCASII RA followed by a descent TCASII RA. Callback conversation with reporter revealed the following information: the reporter states that the aircraft, a B727-200 was at about 6000 ft on the approach to runway 34 at slc when the TCASII sounded a 'TA.' he and the so monitored the TCASII display while attempting to visually acquire the traffic. Just as they saw the aircraft above them the TCASII sounded an 'RA' to climb. The captain started to follow the climb command and the first officer and the so stopped him just as the 'RA' changed to a descend command. The captain talked to the tower supervisor who admitted operator error for turning the metroliner in toward runway 35 across the B727's path. These runways are controled using 2 different frequencys so the parallel traffic may not be aware of each other unless they are advised by the controllers. The B727 crew was not advised in this case.

Original NASA ASRS Text

Title: NMAC - TCASII ON APCH.

Narrative: TURNING FINAL FOR RWY 34 AT SLC, TWR DID NOT NOTIFY OUR FLT OF TFC ABOVE US FOR A PARALLEL RWY. ON FINAL TCASII INDICATED TFC DIRECTLY ABOVE US 200 FT HIGHER THAN US AND COMMANDED A CLB TCASII RA FOLLOWED BY A DSCNT TCASII RA. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATES THAT THE ACFT, A B727-200 WAS AT ABOUT 6000 FT ON THE APCH TO RWY 34 AT SLC WHEN THE TCASII SOUNDED A 'TA.' HE AND THE SO MONITORED THE TCASII DISPLAY WHILE ATTEMPTING TO VISUALLY ACQUIRE THE TFC. JUST AS THEY SAW THE ACFT ABOVE THEM THE TCASII SOUNDED AN 'RA' TO CLB. THE CAPT STARTED TO FOLLOW THE CLB COMMAND AND THE FO AND THE SO STOPPED HIM JUST AS THE 'RA' CHANGED TO A DSND COMMAND. THE CAPT TALKED TO THE TWR SUPVR WHO ADMITTED OPERATOR ERROR FOR TURNING THE METROLINER IN TOWARD RWY 35 ACROSS THE B727'S PATH. THESE RWYS ARE CTLED USING 2 DIFFERENT FREQS SO THE PARALLEL TFC MAY NOT BE AWARE OF EACH OTHER UNLESS THEY ARE ADVISED BY THE CTLRS. THE B727 CREW WAS NOT ADVISED IN THIS CASE.

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.