<< >> NASA ASRS Report 617595, May 2004

DC10 flight crew on final with mia tower, runway 9, experienced TCASII RA at 1200 ft with unknown traffic.

Attributes
ACN	617595
Time
Date	200405
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mia.airport
State Reference	FL
Altitude	agl single value : 1200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mia.tower
Operator	common carrier : air carrier
Make Model Name	DC-10 30
Operating Under FAR Part	Part 121
Flight Phase	descent : approach descent : intermediate altitude
Route In Use	approach : instrument precision
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : mia.tower
Make Model Name	Skymaster
Flight Phase	cruise : level
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : atp pilot : multi engine
Experience	flight time last 90 days : 180 flight time total : 7500 flight time type : 3000
ASRS Report	617595
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : atp
Experience	flight time last 90 days : 120 flight time total : 25000 flight time type : 800
ASRS Report	617599
Events
Anomaly	conflict : nmac non adherence : far non adherence : published procedure
Independent Detector	aircraft equipment : tcas other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Cleared for ILS runway 9 by mia approach. We were switched to tower and cleared to land about 5 mi out. We were flying a coupled approach and at GS capture, we got a TCASII TA. A visual scan was negative. There were numerous contacts on our TCASII display. Approximately 1200 ft, we got an RA with a monitor vertical speed, followed almost immediately by a climb. I disconnected the autoplt, added power, and pulled back on the stick. At nearly the same time, I picked up a visual on a red and white cessna skymaster crossing left to right bearing 200 degrees, immediately under our nose at 200 ft. After completing our evasive maneuver, we asked tower about the traffic. They were unaware of any traffic. The skymaster appeared to take no evasive action. Following landing, an near midair collision report was filed with miami TRACON. Thank goodness for TCASII.

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Original NASA ASRS Text

Title: DC10 FLT CREW ON FINAL WITH MIA TWR, RWY 9, EXPERIENCED TCASII RA AT 1200 FT WITH UNKNOWN TFC.

Narrative: CLRED FOR ILS RWY 9 BY MIA APCH. WE WERE SWITCHED TO TWR AND CLRED TO LAND ABOUT 5 MI OUT. WE WERE FLYING A COUPLED APCH AND AT GS CAPTURE, WE GOT A TCASII TA. A VISUAL SCAN WAS NEGATIVE. THERE WERE NUMEROUS CONTACTS ON OUR TCASII DISPLAY. APPROX 1200 FT, WE GOT AN RA WITH A MONITOR VERT SPD, FOLLOWED ALMOST IMMEDIATELY BY A CLB. I DISCONNECTED THE AUTOPLT, ADDED PWR, AND PULLED BACK ON THE STICK. AT NEARLY THE SAME TIME, I PICKED UP A VISUAL ON A RED AND WHITE CESSNA SKYMASTER XING L TO R BEARING 200 DEGS, IMMEDIATELY UNDER OUR NOSE AT 200 FT. AFTER COMPLETING OUR EVASIVE MANEUVER, WE ASKED TWR ABOUT THE TFC. THEY WERE UNAWARE OF ANY TFC. THE SKYMASTER APPEARED TO TAKE NO EVASIVE ACTION. FOLLOWING LNDG, AN NMAC RPT WAS FILED WITH MIAMI TRACON. THANK GOODNESS FOR TCASII.

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.