Narrative:

I took off from ZZZZ and flew to ZZZ. Upon arrival at ZZZ at approximately XA45 hours; the ATIS WX was reported to be or include visibility of 1/2 SM. Before starting an ILS CAT I approach to ZZZ; the WX (on a new ATIS) went down to 1/4 SM. RVR was not indicated on the ATIS; but the flight crew asked both approach control and the control tower if RVR was available. It was. Touchdown zone was reported to be 3500 ft; mid RVR was 4000 ft; and rollout RVR was reported to be 4000 ft; also. CAT I minimums was 1800 ft RVR. While on approach; we (the crew) saw approach lights; however; after landing; the captain (me) noticed in the NOTAMS; included with our WX package at ZZZZ; indicated that the ALS was OTS except step 3. I also noticed that CAT I ILS minimums with ALS OTS (out of service) went up to 4000 ft RVR required at touchdown. We had 3500 ft RVR; so I had an oversight on my part. We did have an ALS; however; it may be that it was partly not active at the time of our arrival. If not; then we may have shot an illegal ILS CAT I. We landed without incident. Likely causes; although there was a flight crew of 3 pilots; fatigue may have contributed; as well as the fact that I missed the NOTAM about the ALS OTS for when I reviewed them before taking off.

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Original NASA ASRS Text

Title: A B757-200 CAPT REPORTS MISSING AN APCH LIGHT INOP NOTAM NOTICE AND FLYING AN ILS TO CAT I MINIMUMS WHEN INOP APCH LIGHTS REQUIRED A HIGHER MINIMUM.

Narrative: I TOOK OFF FROM ZZZZ AND FLEW TO ZZZ. UPON ARR AT ZZZ AT APPROX XA45 HOURS; THE ATIS WX WAS REPORTED TO BE OR INCLUDE VISIBILITY OF 1/2 SM. BEFORE STARTING AN ILS CAT I APCH TO ZZZ; THE WX (ON A NEW ATIS) WENT DOWN TO 1/4 SM. RVR WAS NOT INDICATED ON THE ATIS; BUT THE FLT CREW ASKED BOTH APCH CTL AND THE CTL TWR IF RVR WAS AVAILABLE. IT WAS. TOUCHDOWN ZONE WAS REPORTED TO BE 3500 FT; MID RVR WAS 4000 FT; AND ROLLOUT RVR WAS REPORTED TO BE 4000 FT; ALSO. CAT I MINIMUMS WAS 1800 FT RVR. WHILE ON APCH; WE (THE CREW) SAW APCH LIGHTS; HOWEVER; AFTER LNDG; THE CAPT (ME) NOTICED IN THE NOTAMS; INCLUDED WITH OUR WX PACKAGE AT ZZZZ; INDICATED THAT THE ALS WAS OTS EXCEPT STEP 3. I ALSO NOTICED THAT CAT I ILS MINIMUMS WITH ALS OTS (OUT OF SVC) WENT UP TO 4000 FT RVR REQUIRED AT TOUCHDOWN. WE HAD 3500 FT RVR; SO I HAD AN OVERSIGHT ON MY PART. WE DID HAVE AN ALS; HOWEVER; IT MAY BE THAT IT WAS PARTLY NOT ACTIVE AT THE TIME OF OUR ARR. IF NOT; THEN WE MAY HAVE SHOT AN ILLEGAL ILS CAT I. WE LANDED WITHOUT INCIDENT. LIKELY CAUSES; ALTHOUGH THERE WAS A FLT CREW OF 3 PLTS; FATIGUE MAY HAVE CONTRIBUTED; AS WELL AS THE FACT THAT I MISSED THE NOTAM ABOUT THE ALS OTS FOR WHEN I REVIEWED THEM BEFORE TAKING OFF.

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.