Altitude deviation altitude crossing restr deviation from clearance route. Pilot attempting to make an ADF approach in WX was advised by the approach controller that he was off course and a go around was suggested. The pilot starts his descent prematurely on the second approach.

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Attributes
ACN	314460
Time
Date	199508
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : gsp
State Reference	SC
Altitude	msl bound lower : 1420 msl bound upper : 2700
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : gsp
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Experience	flight time last 90 days : 23 flight time total : 1686 flight time type : 1100
ASRS Report	314460
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	altitude deviation : crossing restriction not met non adherence : published procedure non adherence : far other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While being vectored for approach for the greer NDB approach for runway 3, upon interception I descended to the MDA. The controller advised I was left of course. ADF indicated I was on course. The controller suggested a re-vector for another approach. I agreed and was cleared back to 2000 ft with a heading change. On the second vector to approach the controller lined us up for the NDB. Upon intercepting the final course I started down to the MDA thinking I was vectored at the NDB. My descent was, as it turned out, premature as I had not passed the marker, but I was thinking of the course as a localizer approach whereby I would descend to MDA so that I could pick up the lights. The controller advised that I was left of course again, but upon breaking out I was to the right of course. Airport lights were picked up approximately 1 1/2 - 2 mi out. No problem with approach or landing in moderate rain and fog. Confusion from indication on ADF being different from controller's indication of position. Controller was very helpful.

Original NASA ASRS Text

Title: ALTDEV ALT XING RESTR DEV FROM CLRNC RTE. PLT ATTEMPTING TO MAKE AN ADF APCH IN WX WAS ADVISED BY THE APCH CTLR THAT HE WAS OFF COURSE AND A GAR WAS SUGGESTED. THE PLT STARTS HIS DSCNT PREMATURELY ON THE SECOND APCH.

Narrative: WHILE BEING VECTORED FOR APCH FOR THE GREER NDB APCH FOR RWY 3, UPON INTERCEPTION I DSNDED TO THE MDA. THE CTLR ADVISED I WAS L OF COURSE. ADF INDICATED I WAS ON COURSE. THE CTLR SUGGESTED A RE-VECTOR FOR ANOTHER APCH. I AGREED AND WAS CLRED BACK TO 2000 FT WITH A HDG CHANGE. ON THE SECOND VECTOR TO APCH THE CTLR LINED US UP FOR THE NDB. UPON INTERCEPTING THE FINAL COURSE I STARTED DOWN TO THE MDA THINKING I WAS VECTORED AT THE NDB. MY DSCNT WAS, AS IT TURNED OUT, PREMATURE AS I HAD NOT PASSED THE MARKER, BUT I WAS THINKING OF THE COURSE AS A LOC APCH WHEREBY I WOULD DSND TO MDA SO THAT I COULD PICK UP THE LIGHTS. THE CTLR ADVISED THAT I WAS L OF COURSE AGAIN, BUT UPON BREAKING OUT I WAS TO THE R OF COURSE. ARPT LIGHTS WERE PICKED UP APPROX 1 1/2 - 2 MI OUT. NO PROB WITH APCH OR LNDG IN MODERATE RAIN AND FOG. CONFUSION FROM INDICATION ON ADF BEING DIFFERENT FROM CTLR'S INDICATION OF POS. CTLR WAS VERY HELPFUL.

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.