Medium large transport receives a TCASII RA while on a parallel ILS approach.

Attributes
ACN	245859
Time
Date	199307
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : rdu
State Reference	NC
Altitude	msl bound lower : 3000 msl bound upper : 3000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : rdu
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	descent : approach
Route In Use	approach : straight in approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 60 flight time total : 11500 flight time type : 5000
ASRS Report	245859
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	controller : issued new clearance flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

TCASII RA on final approach ILS 23L. Commuter aircraft vectored for parallel runway visual approach. Commuter at our altitude and 3 O'clock position when RA to climb was received. Once separation was adequate we continued to runway on visual approach clearance. Airport has just been given approval to operate parallel simultaneous approachs, but I don't think TCASII has been researched into this equation.

Original NASA ASRS Text

Title: MLG RECEIVES A TCASII RA WHILE ON A PARALLEL ILS APCH.

Narrative: TCASII RA ON FINAL APCH ILS 23L. COMMUTER ACFT VECTORED FOR PARALLEL RWY VISUAL APCH. COMMUTER AT OUR ALT AND 3 O'CLOCK POS WHEN RA TO CLB WAS RECEIVED. ONCE SEPARATION WAS ADEQUATE WE CONTINUED TO RWY ON VISUAL APCH CLRNC. ARPT HAS JUST BEEN GIVEN APPROVAL TO OPERATE PARALLEL SIMULTANEOUS APCHS, BUT I DON'T THINK TCASII HAS BEEN RESEARCHED INTO THIS EQUATION.

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.