Federal Aviation Administration
Airworthiness Directives

by Larry Westin


Federal Aviation Administration Airworthiness Dirrectives which apply to the Stinson 108, the Franklin engine, various propellers and some accessories, first created November 30, 2017, Last updated 12/01/17.

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Click here for a list of the airworthiness directives appplicable to the Stinson model 108's. The list makes it easier to "view" what FAA Airworthiness Directives have been issued for the Stinson model 108, the Franklin 6A4-150 and 6A4-165 engines, the Koppers "Aeromatic", McCauley and Sensenitch Propellers, and the Marvel-Schedler carburetor. NOTE this is NOT an official AD list, it is provided for Stinson owners information and provides a single location to review the FAA AD's. See below to obtain the actual FAA Airworthiness Directives. Rev C, PDF, about 170K, added 04/09/96, last updated 11/23/17.

NOTE - AD's published in 2000 and beyond have the FAA background for the AD. The AD itself comes AFTER the background information.

Avialable here are the full official airworthiness directives downloaded from the FAA homepage. Each AD is it's own PDF file.

If you don't have Adobe Acrobat Reader click here Adobe Arcobat Reader 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 Airworthiness Directives

ad-47-50-11.pdf - The front ash trays shall be modified to the self contained type or a "No Smoking" placard installed. PDF format, about 17K. Added 12/01/17.

ad-47-50-12.pdf - Applies to Model 108 Series Serial Numbers 1 through 3500. Compliance required every 100 hours of operation of the stabilizer leading edge attachment to the fuselage. PDF format, about 16K. Added 12/01/17.

ad-49-16-02.pdf - Applies to All Models 108-2 and 108-3 Series Aircraft, Serial Numbers 2250 and Up fabric attach. PDF format, about 18K. Added 12/01/17.

ad-50-17-02.pdf - Broken core strands in the rudder cables. PDF format, about 18K. Added 12/01/17.

ad-50-25-01.pdf - fuel seepage into the space between the inner cabin trim and the outer fabric covering of the fuselage. PDF format, about 21K. Added 12/01/17.

ad-54-02-02.pdf - Federal Skis - Applies to All Universal Stinson 108. PDF format, about 17K. Added 12/01/17.
Franklin 6A4-150 and 6A4-165 Engines

ad-48-50-01.pdf - Franklin 6A4-150-B3 and 6A4-150-B31 engines to prevent possible cylinder base flange failure, visual inspection for cracks just above the base. PDF format, about 18K. Added 12/01/17.

ad-51-15-02.pdf - Franklin 6A4-165-B3 Engines Serially Numbered 33046 and Below Incorporating Original Crankcase Left Half No. 18305; Right Half No. 18306. PDF format, about 19K. Added 12/01/17.

ad-51-28-02.pdf - To preclude the possibility of oil pump failure, oil pump gears P/N 10673 and 17736 must be inspected at each 300 hours of operation. PDF format, about 18K. Added 12/01/17.

ad-63-22-03.pdf - MARVEL-SCHEBLER carburetors installed on Franklin 6A4-165 Series Engines Installed in Stinson 108 Series Aircraft. PDF format, about 19K. Added 12/01/17.

ad-72-06-05R2.pdf - MARVEL-SCHEBLER carburetors installed on Franklin Engines Installed in Stinson 108 Series Aircraft to present looseness or separation of the throttle arm. PDF format, about 205K. Added 12/01/17.

ad-79-07-02.pdf - Applies to ESB WISCO, INCORPORATED, EXIDE AC 78M and WILLARD W78M BATTERIES manufactured during December 1978, January and February 1979, identified by the figures N-8, A-9, or B-9 stamped on either terminal post. PDF format, about 18K. Added 12/01/17.

ad-96-02-04.pdf - AD is applicable to Franklin Model 6A4-150-B3 and 6A4-165-B3 reciprocating engines, installed on the following U.S. registered Stinson aircraft: N6209M, N74231, and N752C. PDF format, about 30K. Added 12/01/17.
Propellers used on Stinson Aircraft

ad-47-50-13.pdf - Koppers Model Aeromatic F200 Propellers. PDF format, about 18K. Added 12/01/17.

ad-50-34-01.pdf - Aircraft Equipped With Model F200 "Aeromatic" Propellers (Does Not Apply to "Aeromatic Model 220 Propellers"). PDF format, about 19K. Added 12/01/17.

ad-63-19-04.pdf - Sensenich - applies to All Controllable and Constant Speed Propeller Models C-2FM, CS-2FM, C-3FR4, CS-3FR5, and CS-3FM4. PDF format, about 19K. Added 12/01/17.

ad-64-07-03.pdf - Flottorp - applies to All F12A-3 and F12A-5 Series Propellers with FS200-1 Propeller Spinner. PDF format, about 18K. Added 12/01/17.

ad-66-23-02.pdf - Sensenich - applies to All Fixed-Pitch Metal Propeller Models with Water-Soluble Mid-Blade Decals. PDF format, about 18K. Added 12/01/17.

ad-69-09-03R3.pdf - Sensenich - applies to Models M76EMM, M76EMMS, 76EM8, and 76EM8S( ) metal propellers. PDF format, about 24K. Added 12/01/17.

ad-2003-13-17.pdf - AD applies to Hartzel, McCauley, Sensenich and Raytheon Aircraft Company Propellers serviced by T and W Propellers, Inc., of Chino, CA. PDF format, about 174K. Added 12/01/17.

ad-2005-14-11.pdf - AD applies to Hartzel, McCauley, and Sensenich Propellers serviced by Southern California Propeller Service, of Inglewood, CA. PDF format, about 38K. Added 12/01/17.
Other AD's for Equipment which may be installed in Stinson Aircraft

ad-2005-01-19.pdf - Garmin International Inc. GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S transponders that include software versions 3.00, 3.01, 3.02, 3.04, or 3.05. PDF format, about 45K. Added 12/01/17.




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