PPRuNe Forums - CSFF 737

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8314	5th Dec 2022 17:50

CSFF 737

Is the 737 certified to go with coald soaked fuel frost on the upper wing?

https://cimg1.ibsrv.net/gimg/pprune....bcf5ba94d.jpeg

Chesty Morgan

5th Dec 2022 18:54

Yep, within the marked area.

8314	5th Dec 2022 19:15

So this pix looks legit! Thanks for the update! 👍🏽

STBYRUD

6th Dec 2022 05:07

Whoa there, no it isn't generally! Only if the regulating authority allows the operator to use that supplemental procedure, then they are allowed to take off with CSFF within the marked area. The FCOM specifically states that just because your airplane may have the CSFF area marked, that does not imply approval! My employer asked the local CAA, and they said no - and this has caused a lot of confusion among the pilots...

172_driver

7th Dec 2022 17:38

OAT has to be 4 deg. or above. Max 3 mm ice allowed. How do you tell?
I think most would be reluctant to go with that amount of ice. And it does extend outside of the box.

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