Narrative:

I filed an IFR flight plan; requested and obtained a complete WX briefing from AFSS for a flight from ZZZ1 to ZZZ2. Routine flight. ZZZ2 ATIS was: wind north at 11; 400 ft broken; about 1000 ft overcast; 7 mi visibility; as near as I recall. The approach in use was VOR runway 35R. My current IAP chart gave an MDA of 460 ft MSL for south runway 35R. As I was descending through 500 ft MSL; tower called a 'low altitude alert.' I added power for a missed approach and told the tower I was still above my MDA; to which the tower replied the MDA was 600 ft MSL as published in a NOTAM about 2 yrs ago. As I was over the south perimeter of the airport; the runway came clearly in sight; and I completed the landing; turning off at taxiway left. Later in the day; I phoned AFSS for NOTAM information regarding this instrument approach. The person I talked with was interested and helpful; and after searching 5-6 mins; returned with several fdc NOTAMS that had existed since 2003; pertaining to revised MDA's for several approachs at ZZZ2 -- this being due to a 'temporary crane' in the area. I guess I need to review how to get the fdc NOTAMS.

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Original NASA ASRS Text

Title: AN SMA PLT RPTS DSNDING BELOW THE ZZZ2 RWY 35R VOR REVISED MDA BECAUSE HE FAILED TO CHK A 2 YR OLD NOTAM ADVISING OF A CRANE IN THE APCH PATH.

Narrative: I FILED AN IFR FLT PLAN; REQUESTED AND OBTAINED A COMPLETE WX BRIEFING FROM AFSS FOR A FLT FROM ZZZ1 TO ZZZ2. ROUTINE FLT. ZZZ2 ATIS WAS: WIND N AT 11; 400 FT BROKEN; ABOUT 1000 FT OVCST; 7 MI VISIBILITY; AS NEAR AS I RECALL. THE APCH IN USE WAS VOR RWY 35R. MY CURRENT IAP CHART GAVE AN MDA OF 460 FT MSL FOR S RWY 35R. AS I WAS DSNDING THROUGH 500 FT MSL; TWR CALLED A 'LOW ALT ALERT.' I ADDED PWR FOR A MISSED APCH AND TOLD THE TWR I WAS STILL ABOVE MY MDA; TO WHICH THE TWR REPLIED THE MDA WAS 600 FT MSL AS PUBLISHED IN A NOTAM ABOUT 2 YRS AGO. AS I WAS OVER THE S PERIMETER OF THE ARPT; THE RWY CAME CLRLY IN SIGHT; AND I COMPLETED THE LNDG; TURNING OFF AT TXWY L. LATER IN THE DAY; I PHONED AFSS FOR NOTAM INFO REGARDING THIS INST APCH. THE PERSON I TALKED WITH WAS INTERESTED AND HELPFUL; AND AFTER SEARCHING 5-6 MINS; RETURNED WITH SEVERAL FDC NOTAMS THAT HAD EXISTED SINCE 2003; PERTAINING TO REVISED MDA'S FOR SEVERAL APCHS AT ZZZ2 -- THIS BEING DUE TO A 'TEMPORARY CRANE' IN THE AREA. I GUESS I NEED TO REVIEW HOW TO GET THE FDC NOTAMS.

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.