Narrative:

After being cleared #1 for VOR/DME runway 4 at acy, was vectored off approach to #4 position. When cleared for approach again, reported established inbound on acy 048 degree radial to cross meady intersection at 2000 ft. When showing past meady, began letdown to minimums. Acy tower called with instructions to climb to 2000 ft and asked altitude. When told, responded with a position report of 2 mi outside the FAF of meady intersection. Climb was made to rejoin approach profile and was then cleared to descend by tower and normal approach and landing were made. Explained to tower and acy ground we experienced DME problem and taxied to FBO. No evasive actions required. Earlier in the day, the aircraft was taken to avionics shop for a navigation/GPS interface problem with the HSI. Part of the problem was solved with a full day needed to troubleshoot fully. In retrospect, aircraft should have been left in shop and flight postponed. Also, should have reset all navigation instruments for new approach after vectors rather than try to intercept preset navigation heads to check operation.

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Original NASA ASRS Text

Title: ACFT HAD INTERMITTENT DME AND RPTR PLT WAS UNSURE OF HIS POS ON THE VOR APCH. CONSEQUENTLY, RPTR DSNDED TO MINIMUMS WHILE STILL INBOUND TO THE FAF. TWR INTERVENED AND TOLD HIM TO CLB BACK TO 2000 FT TO CROSS THE FAF. ROUTINE AFTER THAT.

Narrative: AFTER BEING CLRED #1 FOR VOR/DME RWY 4 AT ACY, WAS VECTORED OFF APCH TO #4 POS. WHEN CLRED FOR APCH AGAIN, RPTED ESTABLISHED INBOUND ON ACY 048 DEG RADIAL TO CROSS MEADY INTXN AT 2000 FT. WHEN SHOWING PAST MEADY, BEGAN LETDOWN TO MINIMUMS. ACY TWR CALLED WITH INSTRUCTIONS TO CLB TO 2000 FT AND ASKED ALT. WHEN TOLD, RESPONDED WITH A POS RPT OF 2 MI OUTSIDE THE FAF OF MEADY INTXN. CLB WAS MADE TO REJOIN APCH PROFILE AND WAS THEN CLRED TO DSND BY TWR AND NORMAL APCH AND LNDG WERE MADE. EXPLAINED TO TWR AND ACY GND WE EXPERIENCED DME PROB AND TAXIED TO FBO. NO EVASIVE ACTIONS REQUIRED. EARLIER IN THE DAY, THE ACFT WAS TAKEN TO AVIONICS SHOP FOR A NAV/GPS INTERFACE PROB WITH THE HSI. PART OF THE PROB WAS SOLVED WITH A FULL DAY NEEDED TO TROUBLESHOOT FULLY. IN RETROSPECT, ACFT SHOULD HAVE BEEN LEFT IN SHOP AND FLT POSTPONED. ALSO, SHOULD HAVE RESET ALL NAV INSTS FOR NEW APCH AFTER VECTORS RATHER THAN TRY TO INTERCEPT PRESET NAV HEADS TO CHK OP.

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.