Interpretation

The RNAV (GPS) approach for Runway 9C at Chicago O'Hare International Airport has a decision altitude of 1040 feet and a height above touchdown of 367 feet for all categories. The visibility requirement is 3500 feet RVR for all categories. If the ALS is inoperative, the visibility requirement increases to 5500 feet RVR for all categories.

Message

IAP CHICAGO O'HARE INTL, CHICAGO, IL. RNAV (GPS) RWY 9C, ORIG... LNAV/VNAV DA 1040/HAT 367 ALL CATS, VIS RVR 3500 ALL CATS. FOR INOP ALS, INCREASE LNAV/VNAV ALL CATS VISIBILITY TO RVR 5500, A...

Raw NOTAM

Q) KZAU/QPIXX/I/NBO/A/000/999/4158N08754W005
A) KORD
B) 2502241641
C) 2510061639EST
E) ORD CHICAGO O'HARE INTL, CHICAGO, IL.
RNAV (GPS) RWY 9C, ORIG...
LNAV/VNAV DA 1040/HAT 367 ALL CATS, VIS RVR 3500 ALL CATS. FOR INOP ALS, INCREASE LNAV/VNAV ALL CATS VISIBILITY TO RVR 5500, AND LNAV CAT C/D TO 1 3/8 SM. TEMPORARY CRANES UP TO 816 MSL 4260 SW OF RWY 9C (2024-AGL-12301/12302-NRA).