B737-800 experiences near midair collision with helicopter on final approach to mia.

Attributes
ACN	770913
Time
Date	200801
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mia.airport
State Reference	FL
Altitude	agl single value : 1300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Make Model Name	Helicopter
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	770913
Person 2
Affiliation	government : faa
Function	controller : local
Events
Anomaly	conflict : nmac non adherence : required legal separation
Independent Detector	aircraft equipment : tcas
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 400
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

On final approach to mia runway 9 approximately 1300 ft; fully configured and on speed. TCAS reported traffic. I did not see traffic and the TCAS switched to RA to level off. I followed RA. Captain visually acquired traffic. A helicopter flew directly through our flight path; within 400 ft. While responding to RA; the tower reported traffic and stated that the helicopter had us in sight. After RA; I recaptured the GS and landed uneventfully.

Original NASA ASRS Text

Title: B737-800 EXPERIENCES NMAC WITH HELI ON FINAL APCH TO MIA.

Narrative: ON FINAL APCH TO MIA RWY 9 APPROX 1300 FT; FULLY CONFIGURED AND ON SPD. TCAS RPTED TFC. I DID NOT SEE TFC AND THE TCAS SWITCHED TO RA TO LEVEL OFF. I FOLLOWED RA. CAPT VISUALLY ACQUIRED TFC. A HELI FLEW DIRECTLY THROUGH OUR FLT PATH; WITHIN 400 FT. WHILE RESPONDING TO RA; THE TWR RPTED TFC AND STATED THAT THE HELI HAD US IN SIGHT. AFTER RA; I RECAPTURED THE GS AND LANDED UNEVENTFULLY.

Data retrieved from NASA's ASRS site as of May 2009 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.