Narrative:

At 4000 ft told to maintain 4000 ft, cleared for ILS runway 28L. Intercepted localizer. Was not receiving GS. Maintained 4000 ft while trying to troubleshoot GS (GS intercept altitude 2700 ft). No DME so did not know exact distance from sumie LOM. Was going to inform approach of loss of GS then was handed off to tower, so did not inform approach control. Passed our marker, started descent to MOA and tower called stating to descend because of mooney traffic 10 O'clock and about 1 mi. PNF spotted mooney, no factor. Runway in sight at marker. Should have informed immediately of no reception of GS. There were multiple NOTAMS for construction that was one of the reasons for the delay. I thought maybe GS was out for construction. We did inform tower of the GS problem.

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Original NASA ASRS Text

Title: LTT LATE STARTING DSCNT ON ILS APCH CAUSED CONFLICT WITH A MOONEY.

Narrative: AT 4000 FT TOLD TO MAINTAIN 4000 FT, CLRED FOR ILS RWY 28L. INTERCEPTED LOC. WAS NOT RECEIVING GS. MAINTAINED 4000 FT WHILE TRYING TO TROUBLESHOOT GS (GS INTERCEPT ALT 2700 FT). NO DME SO DID NOT KNOW EXACT DISTANCE FROM SUMIE LOM. WAS GOING TO INFORM APCH OF LOSS OF GS THEN WAS HANDED OFF TO TWR, SO DID NOT INFORM APCH CTL. PASSED OUR MARKER, STARTED DSCNT TO MOA AND TWR CALLED STATING TO DSND BECAUSE OF MOONEY TFC 10 O'CLOCK AND ABOUT 1 MI. PNF SPOTTED MOONEY, NO FACTOR. RWY IN SIGHT AT MARKER. SHOULD HAVE INFORMED IMMEDIATELY OF NO RECEPTION OF GS. THERE WERE MULTIPLE NOTAMS FOR CONSTRUCTION THAT WAS ONE OF THE REASONS FOR THE DELAY. I THOUGHT MAYBE GS WAS OUT FOR CONSTRUCTION. WE DID INFORM TWR OF THE GS PROB.

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.