Near midair collision. TCASII.

Attributes
ACN	320136
Time
Date	199511
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mlb
State Reference	FL
Altitude	msl bound lower : 2800 msl bound upper : 2800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mlb
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 150 flight time total : 14500 flight time type : 3000
ASRS Report	320136
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : flight engineer pilot : instrument
Experience	flight time last 90 days : 180 flight time total : 10000 flight time type : 2800
ASRS Report	320322
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

During approach to mlb, on GS and localizer, ILS runway 9R 'visual' with ILS backup, we received TA from mlb tower and onboard TCASII system of a conflict on our approach path. TCASII advisory went to RA and commanded stop descent then climb command. I complied with TCASII at the same time that the first officer visually acquired a low wing piper aircraft at our 12 O'clock position and approximately 200 ft low on a south to north heading. In our estimation the timely advisories prevented a midair.

Original NASA ASRS Text

Title: NMAC. TCASII.

Narrative: DURING APCH TO MLB, ON GS AND LOC, ILS RWY 9R 'VISUAL' WITH ILS BACKUP, WE RECEIVED TA FROM MLB TWR AND ONBOARD TCASII SYS OF A CONFLICT ON OUR APCH PATH. TCASII ADVISORY WENT TO RA AND COMMANDED STOP DSCNT THEN CLB COMMAND. I COMPLIED WITH TCASII AT THE SAME TIME THAT THE FO VISUALLY ACQUIRED A LOW WING PIPER ACFT AT OUR 12 O'CLOCK POS AND APPROX 200 FT LOW ON A S TO N HDG. IN OUR ESTIMATION THE TIMELY ADVISORIES PREVENTED A MIDAIR.

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.