Goose strike(s) make left flap go floppy

How to keep the Cessna 170 flying and airworthy.

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Canadian
Posts: 10
Joined: Sun May 31, 2009 1:27 pm

Goose strike(s) make left flap go floppy

Post by Canadian »

Looking for part no. 0525000 (flap assembly - wing - left) for a 1948 C170 -- could trade the floppy flap, if that's any help. These are the skinny simple hinge flaps. Are they interchangeable with 170A flaps?

Anyway, although both options (replace/reskin) are basically equivalent, mechanic feels replacing would be better and easier than reskinning/rebuilding, even including stripping the paint off a used flap (airplane's unpainted). Problem is, he can't find any. Where would you folks go looking for that part? Anyone got a spare they don't need?

I have video of the landing, where a flock of geese emerged from the late-sun glare (on Rwy 27 at the equinox, no kidding), when I was well into the flare and elected to hit them slower on the ground rather than in a go-round. Almost missed 'em, (prop missed 'em, whew) but they were a tad slow in scattering. There are 3 quick thuds in the video but the left flap appears to be the only casualty. Looks like impact(s) at the outboard end flexed the skins to the point where they buckled a bit -- enough to lose stiffness, so the flap will now flex under pressure. It's not really floppy, I'm playing with words there, I guess -- but with full flaps deployed at 75-80mph the left one only appears half down due to the flex, and the plane rolls mildly left. It's placarded against using flaps until it's fixed.

Thanks for any help.

PS Given what happened here, the first time I had my camera mounted & filming a landing -- evidently shooting video is dangerous. Won't be doing that again. ;-)

PPS No injured geese apparent afterwards. The geese and the 170 only got bruises, it seems. Tough birds.
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GAHorn
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Joined: Fri Apr 12, 2002 8:45 pm

Re: Goose strike(s) make left flap go floppy

Post by GAHorn »

The 48 flap is PN 0525000 and the A-model is PN 0523900 . (They are not the same.)

You are likely to be much better off rebuilding your flap. Besides, you'll have fresh, new, clean skins instead of 60-year-old stuff. :wink:
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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Blue4
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Re: Goose strike(s) make left flap go floppy

Post by Blue4 »

Purely for our entertainment, could you post that video? Youtube or somewhere would be great.
-Scott
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flyguy
Posts: 1059
Joined: Mon Apr 22, 2002 6:44 pm

Re: Goose strike(s) make left flap go floppy

Post by flyguy »

It is 0700 here in beautiful Louisiana and i am on only the second sip of my first cup of java. I have the item you need (?) but not sure of the condition. Two cups and a P-call and I will go up to the hangar to have a look.

Incidentally, we were called out one evening to search for a one of the occupants of a boat that had capsized. The weather was pretty "down and dirty" but we knew time was critical so I pulled the C175 (it was in front of the C170 :roll: ) out for the aerial search. We had some concerns about the low vis and rain but what I never counted on that evening was the flocks of migrating ducks and geese. I only "HIT" two ducks and that was "two" too many! The prop took one and the left lift strut and horizontal stab took the other one. My airspeed was probably around 90K and the impacts sounded like a shotgun going off in the cabin. Fortunately the only damage was the fairing on the lower end of the strut and lots of feathers and internal ducky stuff on the prop, windshield and stab. I am so glad it was only "ducks" and not geese we flew into ! 8O 8O 8O
OLE GAR SEZ - 4 Boats, 4 Planes, 4 houses. I've got to quit collecting!
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GAHorn
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Re: Goose strike(s) make left flap go floppy

Post by GAHorn »

The surprise you endured on that flight can only have been superceded by the local duck population who never would have believed that thing of yours would ever fly again! :lol: :lol: :lol:


(Any luck finding the hapless boater?)
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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flyguy
Posts: 1059
Joined: Mon Apr 22, 2002 6:44 pm

Re: Goose strike(s) make left flap go floppy

Post by flyguy »

gahorn wrote: Any luck finding the hapless boater?
We found the capsized boat that evening but not the boater. The BlackHawk crew from Fort Polk came the next morning with the infra red stuff and found the body.

GAY HORN U BAD BAD TO DE BONE :evil: . . AN MEEN TOO :twisted: AN I BETCHA FUR SURE IFN I NEED TOO - - MY OLE 170 WOOD FLY OUT TO YORE PLACE AN WE CUD KILL SOME PIGS. :?: :?: :?:
OLE GAR SEZ - 4 Boats, 4 Planes, 4 houses. I've got to quit collecting!
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