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Final Approach
I filed IFR coming back from 3DA yesterday, just for the fun of it. Once I was handed off to DTW Approach and told to expect the visual at Troy, I asked for the RNAV 9. The controller came back with "unable, that approach is NA at night". Well yes, I knew that. In fact, we've been fighting for 4 months to get that restriction lifted. The only thing was, the sun was out and shining. I asked the controller how that chart note could apply when it wasn't even night yet. He said "I can't run that approach at night. Legal sunset was a half hour ago." Umm, okay, I'll take the visual... (I didn't feel like canceling just to do the approach)
So after I landed I called up the Tracon and asked 1) what time they have for legal sunset and 2) what definition of night applies here. 2) was easy: a half hour after sunset to a half hour before sunrise. But the answer to 1) was 19:33 local time. (Even so they should have cleared me since it was 19:45 when I asked for the approach. Maybe he figured it would take me more than 18 minutes to complete the approach from where I was.)
But the kicker was: official sunset was actually at 20:33 local time. Apparently the FAA issues the charts to controllers in local standard time instead of Zulu dunno, and they're not authorized to adjust for DST. Or at least, they think they aren't.
So at Troy, if you want to fly the RNAV 9 at night IFR, you can ask for it 1.5 hours before sunrise and they'll authorize it. Absolutely brain dead.
So after I landed I called up the Tracon and asked 1) what time they have for legal sunset and 2) what definition of night applies here. 2) was easy: a half hour after sunset to a half hour before sunrise. But the answer to 1) was 19:33 local time. (Even so they should have cleared me since it was 19:45 when I asked for the approach. Maybe he figured it would take me more than 18 minutes to complete the approach from where I was.)
But the kicker was: official sunset was actually at 20:33 local time. Apparently the FAA issues the charts to controllers in local standard time instead of Zulu dunno, and they're not authorized to adjust for DST. Or at least, they think they aren't.
So at Troy, if you want to fly the RNAV 9 at night IFR, you can ask for it 1.5 hours before sunrise and they'll authorize it. Absolutely brain dead.