Stinson 108
Service Bulletins
by Larry Westin
The Stinson 108 Service Bulletin page was first created June 3, 2009,
Last updated 06/07/09.
This page has the Stinson 108 Service Bulletins in Adobe Acrobat PDF format.
Each of these scans for Service Bulletins 228 to 259 are from the original
Stinson Service Bulletins which were published by Stinson on a yellow back
ground paper. They were written and published by the Stinson Service Department
between March 19, 1946, the first Stinson 108 Service Bulletin number 228, to
the last Stinson 108 Service Bulletin published June 4, 1948, number 259.
With the sale of Stinson to Piper, and then later Piper selling the type
certificate for the Stinson 108 to Univair, additional Service Bulletins were
written. Service Bulletins from 260 through 267 are courtesy of Univair,
these are published on a white background paper. My thanks to Univair for
permission to include scanned copies of these Service Bulletins. There is
a link on the main Stinson 108 homepage to the Univair homepage.
Most of this information was written when the airplane was new. However
several times recently I've received information about Stinson 108's which
have been found in a barn or field, not flown for more than 50 years. There
is a chance some of these Service Bulletins have not been incorporated in
all Stinson 108's. I have prsonally seen where the fuel sepage AD has not
been complied with even if the log books says all AD's complied with.
Four of the Service Bulletins directly relate to Airthworthiness Directives
still current today. The Service Bulletins which apply to an Airthworthiness
Directive are marked with red letters saying Airthworthiness Directive.
Service Bulletins prior to number 228 were for the Stinson Reliant, HW-75,
model 105, model 10 and model 10A. Stinson also produced Service Letters,
Service Parts and Accessories Letters (blue background paper), and Stinson
Service Information Letters (pink background paper). None of this information
is presented here, only Stinson Service Bulletins (yellow background paper)
are available here.
Each Service Bulletin is it's own PDF file. You need Adobe Acrobat Reader to view.
If you don't have Adobe Acrobat Reader click here
to get the free Adobe Acrobat Reader. This is a big file, about 40 Meg in size,
you really should have a high speed connection to download it.
Stinson 108 Service Bulletins
Service
Bulletin 228 - Rudder and Elevator Leading Edge, dated March 19, 1946.
About 235K. Added 06/03/09.
Service
Bulletin 229 - Replacement of Starter and Ignition Switch, dated March 19, 1946.
About 211K. Added 06/03/09.
Service
Bulletin 230 - Replacement of Elevator Cable Fairlead, dated March 19, 1946.
About 104K. Added 06/03/09.
Service
Bulletin 231 - Installation of Metal Heel Plates, dated March 19, 1946.
About 88K. Added 06/03/09.
Service
Bulletin 232 - Installation of of Full-Width Scuff Plates Over Door Sills,
dated March 25, 1946.
About 121K. Added 06/03/09.
Service
Bulletin 233 - Reinforcement of Pivot Point on Frant Seat Backs,
dated March 30, 1946.
About 353K. Added 06/03/09.
Service
Bulletin 234 - Rudder Spar Cracks, dated June 10, 1946.
About 201K. Added 06/03/09.
Service
Bulletin 235 - Wheel Pants Reinforcement, dated June 31, 1946. (I realize
June doesn't have 31 days, but that is the date typed on the Service Bulletin.)
About 190K. Added 06/03/09.
Service
Bulletin 236 - Carburetor Air Box-Seal for gasoline overflow leakage,
dated June 17, 1946.
About 104K. Added 06/03/09.
I don't have a copy of Service Bulletin 237. On the February 20, 1947 Service
Bulletin Index, Service Bulletin 237 is listed as "Brake Disc Replacement." On
the April 23, 1948 Service Bulletin Index, Service Bulletin 237 is listed as
"Inactive."
Service
Bulletin 238 - Rudder Counterbalance Weights, dated August 9, 1946.
About 81K. Added 06/03/09.
Service
Bulletin 239 - Elevators - Neutral Position, dated September 5, 1946.
About 80K. Added 06/03/09.
Service
Bulletin 240 - Propellor Bolts - Torque Limits, dated September 5, 1946.
About 74K. Added 06/03/09.
Service
Bulletin 241 - Chafed Lift Struts, dated September 17, 1946.
About 109K. Added 06/03/09.
Service
Bulletin 242 - Fuel Valve Shaft, dated October 14, 1946.
About 96K. Added 06/03/09.
Service
Bulletin 243 - Wing Drag Wires - Periodic Inspection, dated November 1,
1946. About 210K. Added 06/03/09.
Service
Bulletin 244 - Carburetor Air Filter - Winter Precaution, dated October 24,
1946. About 79K. Added 06/03/09.
Service
Bulletin 245 - Ignition Switch 1994524, dated November 1, 1946.
About 108K. Added 06/04/09.
Service
Bulletin 246 - Ash Tray Cover,
AIRTHWORTHINESS DIRECTIVE - this
Service Bulletin has compliance details for Airowrthiness Directive 47-50-11,
dated April 27, 1947.
About 198K. Added 06/04/09.
Service
Bulletin 247 - Leakage - Cabin Door Windows, dated April 29, 1947.
About 107K. Added 06/04/09.
Service
Bulletin 248A - Protection of Wiring Harness, dated June 26, 1947.
About 197K. Added 06/04/09.
Service
Bulletin 249 - Modification of Control Wheel Installation, dated June 3, 1947.
About 133K. Added 06/04/09.
Service
Bulletin 250 - Replacement of "Click" Washer in Fuel Valve, dated May 15, 1947.
About 115K. Added 06/04/09.
Service
Bulletin 251 - Fuel Gauge Modification, dated June 27, 1947.
About 177K. Added 06/04/09.
Service
Bulletin 252 - Tail Wheel Installation, dated June 26, 1947.
About 88K. Added 06/04/09.
Service
Bulletin 253 - Inspection - Cabin Sliding Window, dated September 2, 1947.
About 71K. Added 06/04/09.
Service
Bulletin 254 - Inspection of Stabilizer Leading Edge Attachment,
AIRTHWORTHINESS DIRECTIVE -
this Service Bulletin has compliance details for Airworthiness Directive
47-50-12, dated September 5, 1947. About 346K.
Added 06/03/09.
Service
Bulletin 255 - Accelerator Pump Kit, Part A666-581, for Engines With The
Marvel-Schebler MA-3-SPA Carburetor, dated February 20, 1948.
About 94K. Added 06/04/09.
Service
Bulletin 256 - Inspection of Cabin and Carburetor Air Heat System,
dated February 20, 1948.
About 88K. Added 06/04/09.
Service
Bulletin 257 - Elevator Trim Tab Control Horn, dated March 5, 1948.
About 196K. Added 06/04/09.
Service
Bulletin 258 - Repair or reinforcement of Rudder Skins at Tab Hinges,
dated May 19, 1948.
About 303K. Added 06/04/09.
Service
Bulletin 259 - Relocation of Battery Vent Tube, dated June 4, 1948.
About 172K. Added 06/04/09.
Univair has published Stinson Service Bulletins 260 through 267. Univair
has given me permission to scan and present here their Stinson 108 Service
Bulletins 260 through 267.
Service
Bulletin 260 - Misalignment of Two Forward Rudder Cable Pulleys,
dated July 15, 1948. About 56K. Added 06/07/09.
Service
Bulletin 261 - Change in Aircraft Nameplate, dated August 6, 1948.
About 79K. Added 06/07/09.
Service
Bulletin 262 - Adjustment of Aermatic Propeller Model F200/00-76B
Assemby No. 4320 and No. 4320-1 to Limit RPM to Never Excceed 2650,
dated October 15, 1948.
About 79K. Added 06/07/09.
Service
Bulletin 263 - Jettison Doors, dated July 28, 1958.
About 116K. Added 06/07/09.
Service
Bulletin 264 - Stinson 108-3901001 - Float Fitting Kit - Fuselage,
dated Jan., 1958.
About 45K. Added 06/07/09.
Service
Bulletin 265 - Stinson 108-3042450 - Bungee Kit, dated Jan., 1958.
About 38K. Added 06/07/09.
Service
Bulletin 266 - Formerly Piper Service Bulletin No. 114 - Stinson Rudder
Cables Model 108; 108-1; 108-2 and 108-3, dated February 1, 1950.
AIRTHWORTHINESS DIRECTIVE -
this Service Bulletin has compliance details for Airworthiness Directive
50-17-02, dated April 1950.
About 133K. Added 06/07/09.
Service
Bulletin 267 - Formerly Piper Service Bulletin No. 115 - Fuel
Sepage into Cabin, dated March 31, 1950.
AIRTHWORTHINESS DIRECTIVE -
this Service Bulletin has compliance details for Airworthiness Directive
50-25-01, dated May 1950.
About 133K. Added 06/07/09.
Return home
to Larry & Sue Westin's homepage.