A B727 flight crew received a TCASII warning on approach to mggt.

Attributes
ACN	443794
Time
Date	199907
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mggt.airport
State Reference	FO
Altitude	msl single value : 6600
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mggt.tower
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 01 other vortac
Route In Use	approach : instrument precision
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : mggt.tower
Operator	general aviation : personal
Make Model Name	Baron 55/Cochise
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
ASRS Report	443794
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : far
Independent Detector	aircraft equipment : tcas other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 2600
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Ambiguous
Air Traffic Incident	other

Narrative:

Cleared for ILS, DME 1, runway 1 approach. In procedure turn, got TCASII warning, saw traffic visually (a beech baron) at our altitude, less than 1/4 mi, avoided traffic and landed. Talked to tower after landing and they said the baron was to follow us. We were never given the baron as traffic. We were the only aircraft on frequency speaking english.

Original NASA ASRS Text

Title: A B727 FLC RECEIVED A TCASII WARNING ON APCH TO MGGT.

Narrative: CLRED FOR ILS, DME 1, RWY 1 APCH. IN PROC TURN, GOT TCASII WARNING, SAW TFC VISUALLY (A BEECH BARON) AT OUR ALT, LESS THAN 1/4 MI, AVOIDED TFC AND LANDED. TALKED TO TWR AFTER LNDG AND THEY SAID THE BARON WAS TO FOLLOW US. WE WERE NEVER GIVEN THE BARON AS TFC. WE WERE THE ONLY ACFT ON FREQ SPEAKING ENGLISH.

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.