Narrative:

At a point approximately 5 mi outside the marker for runway 4R bos, we were established on the localizer descending to marker altitude. The ILS ground equipment failed at this time and we were cleared for the runway 4R NDB approach. We configured the airplane in preparation for the NDB approach. The ILS came back on line and we were reclred for the ILS runway 4R. We were back and forth from ILS to FMS to NDB to FMS to ILS navigation while identing radios and running the final checklist. We broke out below the clouds and had the airport visually. Next the tower announced that they had lost 'all' airport lights. My first officer advised them that we had both the threshold and approach lights in sight. Tower asked my intentions and I replied that I did not know the legality, but would continue. We prepared for a missed approach, but, as more light reflectors and the rclm became clearly visible, I concluded that the safest and most prudent action would be to land from this stabilized position rather than to perform a go around into an ATC environment that had just experienced multiple failures in the last 3 or 4 mins. We landed uneventfully with inoperative high intensity runway lights, touchdown zone, and centerline lights. Alsaf ii threshold and airport signs were operational. Many reflectors were visible. Supplemental information from acn 257430: the aircraft lights provided sufficient illumination of the landing area stripes, rclm's, runway edge and reflectors along the runway edge (snow stakes) for a comfortable landing and rollout. Our operations specifications require runway edge lights and threshold lights for landing at night.

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Original NASA ASRS Text

Title: AN ACR LGT LANDED WHEN THE RWY LIGHTS WERE OUT AND THE ILS WAS INTERMITTENT.

Narrative: AT A POINT APPROX 5 MI OUTSIDE THE MARKER FOR RWY 4R BOS, WE WERE ESTABLISHED ON THE LOC DSNDING TO MARKER ALT. THE ILS GND EQUIP FAILED AT THIS TIME AND WE WERE CLRED FOR THE RWY 4R NDB APCH. WE CONFIGURED THE AIRPLANE IN PREPARATION FOR THE NDB APCH. THE ILS CAME BACK ON LINE AND WE WERE RECLRED FOR THE ILS RWY 4R. WE WERE BACK AND FORTH FROM ILS TO FMS TO NDB TO FMS TO ILS NAV WHILE IDENTING RADIOS AND RUNNING THE FINAL CHKLIST. WE BROKE OUT BELOW THE CLOUDS AND HAD THE ARPT VISUALLY. NEXT THE TWR ANNOUNCED THAT THEY HAD LOST 'ALL' ARPT LIGHTS. MY FO ADVISED THEM THAT WE HAD BOTH THE THRESHOLD AND APCH LIGHTS IN SIGHT. TWR ASKED MY INTENTIONS AND I REPLIED THAT I DID NOT KNOW THE LEGALITY, BUT WOULD CONTINUE. WE PREPARED FOR A MISSED APCH, BUT, AS MORE LIGHT REFLECTORS AND THE RCLM BECAME CLRLY VISIBLE, I CONCLUDED THAT THE SAFEST AND MOST PRUDENT ACTION WOULD BE TO LAND FROM THIS STABILIZED POS RATHER THAN TO PERFORM A GAR INTO AN ATC ENVIRONMENT THAT HAD JUST EXPERIENCED MULTIPLE FAILURES IN THE LAST 3 OR 4 MINS. WE LANDED UNEVENTFULLY WITH INOP HIGH INTENSITY RWY LIGHTS, TOUCHDOWN ZONE, AND CTRLINE LIGHTS. ALSAF II THRESHOLD AND ARPT SIGNS WERE OPERATIONAL. MANY REFLECTORS WERE VISIBLE. SUPPLEMENTAL INFO FROM ACN 257430: THE ACFT LIGHTS PROVIDED SUFFICIENT ILLUMINATION OF THE LNDG AREA STRIPES, RCLM'S, RWY EDGE AND REFLECTORS ALONG THE RWY EDGE (SNOW STAKES) FOR A COMFORTABLE LNDG AND ROLLOUT. OUR OPS SPECS REQUIRE RWY EDGE LIGHTS AND THRESHOLD LIGHTS FOR LNDG AT NIGHT.

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.