Narrative:

On approach to runway 29 in MSL at night the flight crew noticed that part of the runway lights were inoperative. Having adequate lights to identify the runway environment; the flight crew elected to continue the approach and land the aircraft. About 1/3 of the runway lights were visible to the flight crew at the time of landing. The WX was VFR at the time of landing. The runway lights were not notamed OTS at the time of departure and must have become inoperative during the flight; therefore; the flight crew had no knowledge of the outage. The fom doesn't provide specific guidance as to how many; or what percentage of the lights must be operational.

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Original NASA ASRS Text

Title: AIR CARRIER FLIGHT CREW RETURNS TO MSL TO DISCOVER TWO-THIRDS OF THE RUNWAY LIGHTS ARE INOPERATIVE. AFTER READING THE FOM CREW ELECTS TO LAND WITH NO ADVERSE CONSEQUENCES.

Narrative: ON APCH TO RWY 29 IN MSL AT NIGHT THE FLT CREW NOTICED THAT PART OF THE RWY LIGHTS WERE INOP. HAVING ADEQUATE LIGHTS TO IDENT THE RWY ENVIRONMENT; THE FLT CREW ELECTED TO CONTINUE THE APCH AND LAND THE ACFT. ABOUT 1/3 OF THE RWY LIGHTS WERE VISIBLE TO THE FLT CREW AT THE TIME OF LNDG. THE WX WAS VFR AT THE TIME OF LNDG. THE RWY LIGHTS WERE NOT NOTAMED OTS AT THE TIME OF DEP AND MUST HAVE BECOME INOP DURING THE FLT; THEREFORE; THE FLT CREW HAD NO KNOWLEDGE OF THE OUTAGE. THE FOM DOESN'T PROVIDE SPECIFIC GUIDANCE AS TO HOW MANY; OR WHAT PERCENTAGE OF THE LIGHTS MUST BE OPERATIONAL.

Data retrieved from NASA's ASRS site as of May 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.