I have read post about removing original bolts and replacing w Clinch pins secured w hitch pins.
Would like the convenience of 2 PC rear seat removal.
Can someone help me with the exact size of parts needed ? Source will be ACE aerospace.
I see part AN 394-33/MS0392-3C 33 But I don't know how convey to clerk.
20 miles from airplane and would like to accomplish in one trip.
Need to know length and diameter of clinch pin in inches.
Regards
Replace Rear Seat Bolts
Moderators: GAHorn, Karl Towle, Bruce Fenstermacher
- MoonlightVFR
- Posts: 624
- Joined: Sun Jan 02, 2005 5:55 pm
Replace Rear Seat Bolts
gradyb, '54 B N2890C
Re: Replace Rear Seat Bolts
I used, from Spruce:
AN394-33 CLEVIS PIN MS20392-3C33
04-05100 COMMERCIAL STEEL WIRE LOCK PIN
AN394-33 CLEVIS PIN MS20392-3C33
04-05100 COMMERCIAL STEEL WIRE LOCK PIN
Brian M
N2669V - '48
N2669V - '48
- Bruce Fenstermacher
- Posts: 10318
- Joined: Tue Apr 23, 2002 11:24 am
Re: Replace Rear Seat Bolts
It is a 1/4 pin that is 1-1/32 long. I don't know that I used one that exact length. It is was a pinch longer or shorter, you'll probably be OK. I'd favor a slightly longer if you have to because the extra length will not be seen as it is inside your seat back and it won't effect the way it works. Your ACE place will have something like this pin in the Hillman Hardware selection.
CAUTION - My forum posts may be worth what you paid for them!
Bruce Fenstermacher, Past President, TIC170A
Email: brucefenster at gmail.com
Bruce Fenstermacher, Past President, TIC170A
Email: brucefenster at gmail.com
Re: Replace Rear Seat Bolts
Grady, the only thing I would add to what has been said already is to suggest that you also get some pins a little longer and a litter shorter than what's been described. I changed my rear seat back bolts to pins during my first annual. Almost every time I remove and reinstall the seat back, at least one of the pins I used the last time seems a little too long or a little too short this time. I'm not sure why. But after struggling with it for a few years, I've stopped fighting it and now just keep 2 or 3 lengths handy, and use the ones that fit best at the time. They are cheap enough.
Gene Feher
Argyle (1C3), NY
'52 170B N2315D s/n 20467 C-145-2
Experimental J3 Cub Copy N7GW O-200
Argyle (1C3), NY
'52 170B N2315D s/n 20467 C-145-2
Experimental J3 Cub Copy N7GW O-200
- ghostflyer
- Posts: 1395
- Joined: Mon Apr 21, 2008 3:06 am
Re: Replace Rear Seat Bolts
Not wishing to steal some ones thunder on this one “but” how legal is it to replace hardware securing a seat to the aircraft and what sort of log book entry would be made ?
- Kyle Wolfe
- Posts: 707
- Joined: Mon Mar 17, 2003 12:30 am
Re: Replace Rear Seat Bolts
I keep looking for the linch pin style (push button to T handle with the little balls that retract) so I'm not always trying to replace the small keeper hairpin that's inserted through the clevis hole which I cannot see.
Been googling but just not yet found the proper size......
Been googling but just not yet found the proper size......
Kyle
54 B N1932C
57 BMW Isetta
Best original 170B - Dearborn, MI 2005
54 B N1932C
57 BMW Isetta
Best original 170B - Dearborn, MI 2005
Re: Replace Rear Seat Bolts
That hinge pin does not secure the seat to the aircraft. It secures the seat back (a non-structural part) to the seat. Any common AN pin or bolt hardware solution would also work as a minor alteration.ghostflyer wrote:Not wishing to steal some ones thunder on this one “but” how legal is it to replace hardware securing a seat to the aircraft and what sort of log book entry would be made ?
'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.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.