Not really clear what you are telling me with the new IC statement, I assume this landing is some kind of necessary waypoint that I can't get around, because if I could I would. Rickety and bowed is bad enough, rickety, bowed and awkwardly out of the way is all kinds of bad news.
If I have to go that way to continue ascent, I am assuming a climbing roll is necessary. I am not going to assume pool modifiers, so I will roll 13 dice: 4 skill + 7 Strength + 2 Claws
http://invisiblecastle.com/roller/view/2788154/13d6.hits(5) → [6,4,4,5,6,6,5,1,2,2,4,5,1] = (6)
13d6.hits(5) → [6,1,2,5,1,5,4,1,3,1,2,3,2] = (3)
13d6.hits(5) → [3,1,3,5,4,1,4,6,6,5,6,6,5] = (7)
13d6.hits(5) → [2,3,3,5,2,4,2,6,6,2,3,3,3] = (3)
13d6.hits(5) → [2,6,2,4,3,3,5,4,3,2,6,6,3] = (4)
13d6.hits(5) → [6,1,5,4,1,5,2,3,2,2,2,4,2] = (3)
13d6.hits(5) → [6,2,3,2,6,4,5,2,5,4,6,5,1] = (6)
13d6.hits(5) → [1,6,1,2,5,3,2,1,6,1,1,5,4] = (4)
13d6.hits(5) → [1,6,2,4,2,2,6,4,1,3,4,2,1] = (2)
13d6.hits(5) → [2,1,6,1,2,3,2,6,6,1,2,6,1] = (4)
Hope I did that right