banner graphic
Airport Webcams
Who's Online
12 registered (Wayne R, Rusty Rudder, michaelj, DFMMD, Joe Jet, Steve N8809B, Bud Owens7, Joeman434, Sondavid, Shiner, TxHawk, Karlj), 304 Guests and 0 Spiders online.
Key: Admin, Global Mod, Mod
Newest Members
DragonforceTexas, ianneub, Boomhower, Gman, HLS
10365 Registered Users
Top Posters
Bargain Bob 201603
vettdvr 7724
Rusty Rudder 7325
Cessna Dude 6628
California Flyer 5838
Joeman434 5045
Willie 4728
Clyde Cessna 4223
Don Tedrow 3553
Peedie Montgomery 3209
wrecksum 2704
Ward Holbrook 2436
XP Driver 2406
November X-ray 2303
ytodd 2141
Jim_1 2036
oilwell1415 1906
Nightowl 1826
Bigdoggh 1821
Pilawt 1779
Nintendo Pilot 1738
Glenn Darr 1708
Showboatsix 1656
KevinMcP 1652
RodneyHooverCFI 1646
Pilot110 1564
N5479R 1503
EdW 1502
Henry M. 1440
Shuswap 1304
Top Posters (30 Days)
Bargain Bob 2418
C420sailor 75
Joeman434 71
Sky 21 69
Viper_96 49
Clyde Cessna 44
Rusty Rudder 40
cap41 27
michaelj 27
Flyboy712 26
California Flyer 26
N5479R 25
Peedie Montgomery 25
Don Tedrow 23
Flubber4.0 20
Wayne R 19
bryris 18
combahee 17
Curious1 17
bpost58 16
magman 15
Showboatsix 14
Sunday Pilot 13
iiAtlas 12
Henry M. 12
Bimota 11
skyhawk3 10
Kejidog 8
40Flaps 8
mx757 8
Topic Options
#118861 - 03/15/13 10:08 AM Door hinge pins
vettdvr Offline
Club Sponsor
Diamond Pilot

Registered: 06/24/10
Posts: 7724
Loc: Slidell La
Check your door pins for loosness. During annual all mine were change and what I saw was 50% of the pin was worn away. While helping a friend at the apt today on another 172, he opened the door and it bound up,, I prevented him from forcing it and we found the bottom half of the hinge pin broken jamming the hinge. Don't know if you priced a new hinge but ONE from Cessna is around $800 + labor to install so it is much cheaper to put in new pins than break the hinge.

Check yours and save $$ and pain / agony.
_________________________
Vettdvr

Single/Multi/instrument/type/commercial But then I am still learning.

Top
#118862 - 03/15/13 10:13 AM Re: Door hinge pins [Re: vettdvr]
oilwell1415 Offline
Gold Pilot

Registered: 09/20/12
Posts: 1906
Loc: Tulsa, OK
50% of it was worn away, or it was 50% of its original diameer? Big difference there. If it is worn to 50% of its original diameter it means only 25% of the original material is left meaning it is 25% as strong as it was when new.
_________________________
1947 North American Navion N8747H. It isn't the fastest, doesn't have the biggest payload, burns gas almost as fast as I can pour it in the tank and requires lots of TLC, but it's cool as hell and that's why we play the game.

Top
#118932 - 03/16/13 04:17 AM Re: Door hinge pins [Re: oilwell1415]
vettdvr Offline
Club Sponsor
Diamond Pilot

Registered: 06/24/10
Posts: 7724
Loc: Slidell La
the pin aat the wear points was 50% the diameter of a new pin. But I didn't do a tension anlaysis to determine the stress strain curve.
_________________________
Vettdvr

Single/Multi/instrument/type/commercial But then I am still learning.

Top
#118946 - 03/16/13 07:49 AM Re: Door hinge pins [Re: vettdvr]
magman Offline
Gold Pilot

Registered: 10/10/12
Posts: 1039
Loc: buffalo NY
Finding this during a inspection is cost effective.

Having your door falling off away from your base is not.

Inspection of these items is normal.

Someone that does not write them up is NOT your "friend".


BTW- You do NOT have to be an A & P to look @ these.


Lubrication per the SM is often ignored for these & the window

hinges & latches.

That minor item WILL extend the life but vibration

still takes a toll.






Edited by magman (03/16/13 07:50 AM)

Top


Cessna172 Tribute
THIS MONTH'S SPONSOR
Special thanks to:
You!
Thank you for making this site great
Today's Birthdays
broker81
Helpful Links
100LL Price Finder
AD Directory
Aging GA Aircraft
Aircraft Directory
Airplane Report
AirNav
Airport Facilities Directory
AOPA
Aviation Weather
Barnstormers
BaseOps
C172 History
Cessna
Controller
Crash Records
DUAT Voyager Planner
DUATS
FAA
FltPlan
Flight Aware
Flying Tools (Files)
Google Earth
Ground Speed Records
National METAR Map
Sky Vector
Trade-A-Plane
Uvalde Flight Ctr
All the Webcams
Shout Box

AOPA
AOPA
Weather Lookup
Airport code:
(separate multiple codes with spaces)

List of stations