This section of the site is devoted to technical data related to Cessna Skymaster and O-2 aircraft. If you have something you would like to share, please email us.


P337H Checklist and Training Book
Contributed by Willem C.J.M. Van Genk CFII-ATP
(Use this material at your own risk. Always follow manufacturer's recommendations.)

P337H Checklist (click for document)
P337H Training Book (click for document)

FAA Maintenance Alert on 336/337 flap cables

Click here for document. The artwork referred to in this document is missing, but it is the figure from AC43-13 that shows inspecting the cable by looping to
check for broken strands internal to the cable. DOC and PDF versions of this section are available below.

Cessna Service Bulletin

"Cessna does not and it does not allow others to post its service letters and
bulletins on websites. Cessna has a full range of copyrighted service
publications available for owners, including subscriptions to Service
letters and bulletins. Cessna directly distributes such publications to
ensure that accurate, correct, and complete service information is provided
to individual owners for their specific aircraft. If you would like more
information about Cessna copyrighted service publications, please contact
Cessna Customer Services, Telephone No. 316 517-5800 or Facsimile No.
316 942-9006.

Cessna Support online services have Service Documents for our aircraft.  Go to the link below and register to log in.  Once you have entered your information about the aircraft you have you will see a window that has a box titled “MY INFORMATION”  In the box below that is “MY MODELS”  Click on “300 TE Series to provide information about your model.  On the right is a box that is titled “AIRCRAFT PUBLICATIONS” in this box click on "Service Documents"

Here is a quick link to “Service Documents” but you must be registered to view


Cessna contacts:

Tom Wakefield (
Mr. Wakefield copied his boss, Russ Meyer, CEO of Cessna, using this email address ( which shows in the email as Russ Meyer (Chairman).

FAA AC 43-13 Acceptable Methods...Aircraft Inspection and Repair

Note: The 43-13 files in this section are big. Gmas file is 1.4 Mb. First link in list of files contributed by Bob Cook (control cable inspection) is the same as Gmas document, but only 435K in PDF format. Other Cook files are as much as 400K. So if you download these files via a dialup connection, please be prepared to be patient...

  Link to FAA web site with entire Advisory Circular
Contributed by Gmas
  Word version of cable inspection and repair section
FAA document contributed by Gmas
  PDF versions of various section of AC 43-13
FAA documents converted and contributed by Bob Cook
    Control cable inspection
Basic corrosion measures
Corrosion inspection
Corrosion removal
Cable inspection
Inspection and maintenance of landing gear
Human factors as they relate to maintenance

Shadin Digiflo Fuel Flow Indicator Wiring Diagrams
Shadin Avionics and Fuel Flow technical publications and software can be found at this link:

Shadin documents scanned and contributed by Rick Bell

Sorry, these scans are not the best resolution.

    Page 1, Page 2, Page 3, Page 4

Mitchell Instrument Cluster Replacement in 1967 C337
Contributed by Jim Stack.

Description of instrument cluster (oil pressure, temp, fuel qty, etc.) replacement on C337. From the FAA 337 form. 337 available from FAA records, but cannot be provided here.

    Installation Description (PDF document)
    Electrical System Schematic (PDF format).
    Cluster Schematic (PDF format).
    Cluster Shematic (Visio format). Same as PCX drawing above.