Astra 1124A pilot has a track heading deviation during approach to opf.

Attributes
ACN	703309
Time
Date	200607
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : mia.tracon
State Reference	FL
Altitude	msl single value : 1800
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mia.tracon
Operator	common carrier : air taxi
Make Model Name	IAI1124/1124A/Westwind
Operating Under FAR Part	Part 135
Navigation In Use	ils localizer & glide slope : 9l
Flight Phase	descent : approach
Route In Use	approach : visual approach : instrument precision arrival : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 4500 flight time type : 3500
ASRS Report	703309
Events
Anomaly	non adherence : clearance non adherence : published procedure other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance flight crew : executed missed approach flight crew : overcame equipment problem
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

On a controled flight intended to opf; we were vectored by ATC on a direct heading to intercept the ILS to runway 9L. My autoplt did capture the signal right away but lost signal 6 NM before the runway. We had a visual on the airport which concurred the approach. After switching to tower; I spotted an airplane on the runway and asked tower about that. Tower replied they had no airplane on runway. I instantly engaged a go around and contacted miami approach. We were at that point on final for fort lauderdale hollywood. We got vectored back to opf. After checking everything; we found out that the ILS runway 9L for opf is 110.5 and the ILS for fll is 110.1. That may be why the autoplt captured the signal from fll instead of opf. I will have my maintenance run a check on the signal reception.

Original NASA ASRS Text

Title: ASTRA 1124A PLT HAS A TRACK HDG DEV DURING APCH TO OPF.

Narrative: ON A CTLED FLT INTENDED TO OPF; WE WERE VECTORED BY ATC ON A DIRECT HDG TO INTERCEPT THE ILS TO RWY 9L. MY AUTOPLT DID CAPTURE THE SIGNAL RIGHT AWAY BUT LOST SIGNAL 6 NM BEFORE THE RWY. WE HAD A VISUAL ON THE ARPT WHICH CONCURRED THE APCH. AFTER SWITCHING TO TWR; I SPOTTED AN AIRPLANE ON THE RWY AND ASKED TWR ABOUT THAT. TWR REPLIED THEY HAD NO AIRPLANE ON RWY. I INSTANTLY ENGAGED A GAR AND CONTACTED MIAMI APCH. WE WERE AT THAT POINT ON FINAL FOR FORT LAUDERDALE HOLLYWOOD. WE GOT VECTORED BACK TO OPF. AFTER CHKING EVERYTHING; WE FOUND OUT THAT THE ILS RWY 9L FOR OPF IS 110.5 AND THE ILS FOR FLL IS 110.1. THAT MAY BE WHY THE AUTOPLT CAPTURED THE SIGNAL FROM FLL INSTEAD OF OPF. I WILL HAVE MY MAINT RUN A CHK ON THE SIGNAL RECEPTION.

Data retrieved from NASA's ASRS site as of January 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.