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I had an interesting experience flying into College Station, TX (CLL) on AA4916 last month. Most of the time, it's a bog standard night flight from DFW on a CRJ-700. On my flight, the captain warned us that we might not be able to land in CLL because:
- The main runway, 17/35, was closed for maintenance.
- The other runway, 11/29, was a little over 5000 feet long and not equipped for instrument approaches.
- We couldn't land on 11 because the lights (VASI) were out of service.
- There was a slight tailwind. (10 mph, 180°)
Sure enough, the wind didn't change direction, and our flight returned to DFW. Most of the passengers I was talking with got home the next day, and so my story ended. It wasn't the end of AA4916's troubles, though. Over a five-day period, this flight
- June 24th: Diverted to DFW
- June 25th: Diverted to DFW
- June 26th: Diverted to DFW
- June 27th: Was delayed until 7:56 the next morning
- June 28th: Was delayed until 9:57 the next morning
I was curious about a few things:
- I don't understand why the flight crew only said "we can't land because of tailwind" when the direct tailwind was only 3-5 mph. Was it really the tailwind, crosswind, short runway, or a combination?
- Have you ever seen an airport that was temporarily limited to only one direction like that?
- American didn't compensate any of the passengers on my flight, claiming weather. I would assume they did the same for the other flights. Do you agree with them?
Im not typed in the CRJ so I’m not 100% certain as to what skywests policy is but in general from what I hear from my colleagues 4500 feet is the CRJ-700 runway filter limit, litterally the airplane will not let you program a flight to a shorter runway. Therefore I’m going to say it’s safe to assume that this is the bare minimum runway needed to land.
You also have a tailwind meaning your adding (I’m not sure what the CRJs numbers are but I’ll be conservative and add 10% extra landing distance meaning your 450 feet for every extra 2 knots on tail.
10 mph at 180 is about 3-4 knots on tail so I’ll say adding 900 feet to minimum distance and that blows us well over the 5158 runway landing available, at around 5400 feet, that’s without whatever SOP skywest has in place, basically even at the most conservative I’d say not PIC/Captain would go ahead and land on a short runway with a tailwind, despite it being low.
Hope this helps!
Edit: this is also negating a lot of things which would bring the total runway needed up, basically literally just these two things basically stop the aircraft from landing
Edit2: very common to see limits like this at small airports, therefore for a lot of the regional 121 airlines, it’s common. Not so much so for AA mainline
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