Service and Technical Documents

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Service Letter	Subject (Applicability)	Available Formats
C-139	Inspection and Repair for Lose Rib Nails (Wood Spar)	Adobe Acrobat (.pdf)
406 rev. "A"	Wood Spar Inspection	Adobe Acrobat (.pdf)
417 rev. "C"	Optional Inspection Cover Installation (Wood Spar)	Adobe Acrobat (.pdf)
418 rev. "A"	Electrical System Update	Adobe Acrobat (.pdf)
419	Fuel Line / Flap Sector Clearance (7GCBC, 8GCBC)	Adobe Acrobat (.pdf)
420 rev. "A"	Metal Spar Wing Conversion Guidance (Pre 7ECA, older 7 series)	Adobe Acrobat (.pdf)
421	Early Model Seat Belt Conversion (7AC, 7BCM, 7CCM, 7DC, 7EC)	Adobe Acrobat (.pdf)
422 rev. "A"	Aluminum Gear Retrofit (7ECA, 7GCAA, 7KCAB, 7GCBC, 8KCAB) (Revision 'A' adds model 8GCBC)	Adobe Acrobat (.pdf)
423	Normal Category Gross Weight Increase (8KCAB)	Adobe Acrobat (.pdf)
424	Flap Wing Root Pulley and Cable Inspection (7GCB, 7GCBC, 8GCBC)	Adobe Acrobat (.pdf)
425	Inspection of Toe Brake Cotter Pin (7ECA, 7GCAA, 7KCAB, 7GCBC, 8KCAB, 8GCBC)	Adobe Acrobat (.pdf)
426	Inspection /  Upgrade of Wing Tip Wire Attachment (All Models)	Adobe Acrobat (.pdf)
427	Inspection of Nicopress Sleeves (Revision B)	Adobe Acrobat (.pdf)
428	Inspection of Repaired Wide Rear Seat	Adobe Acrobat (.pdf)
429	Inspection of Stereo Headphone Wiring	Adobe Acrobat (.pdf)
430	Conversion of 7ECA, 7GCAA and 7GCBC to Lycoming O-320-B2B or Equivalently Provisioned Engine per TCDS E-274.	Adobe Acrobat (.pdf)
431	Inspection Folding Rear Seat Hinge	Adobe Acrobat (.pdf)
432	Inspection Folding Rear Seat Restraint Cable	Adobe Acrobat (.pdf)
433	Installation of Front Seat Lap Belts	Adobe Acrobat (.pdf) Flight Manual Supplement (.pdf) Flight Manual Supplement (.jpg)
434	Door Release Pin and Ring	Adobe Acrobat (.pdf)
435	Fuselage Inspection for Loose Items	Adobe Acrobat (.pdf)
436	Installation Floorboard Extensions or Revised Floorboards	Adobe Acrobat (.pdf)
437	One-Time Inspection of Folding Front Seat Bottom	Adobe Acrobat (.pdf)

Other Topics:

• Revised Electrical Wiring to improve long term safety.
  Service Letter 418 details this for retrofitters.  The data on the letter is all FAA approved.
  (Note that there was a minor change to the letter from the Draft that was released!)
  The Service Letter was determined to not be Mandatory, but recommended.
  We have kits available depending on battery location.  Please phone our parts department.

 

• Gross Weight Increase to 7ECA's, 7GCAA's, and 7KCAB's 
  Get 100 lbs. extra with no other modifications besides our wings (up to 1750 lbs.).
  Call us, Fax us, or email us with your Serial Number, N-number, and snail mail address,
  We will type a new Flight Manual or Supplement and mail it to you.
  This addition is standard on new aircraft.

 

• Normal Category Gross Weight Increase to 8KCAB
  Super Decathlons with our wings and new aluminum or extended steel gear legs are eligible for
  a Normal Category (NOT Acrobatic Category) gross weight increase to 1950 lbs.  Thus, allows
  for easier cross country flight and non-acrobatic instruction operation.
  See Service Letter 423 for details and prerequisites. 

 

• Normal Category Gross Weight Increase to 7GCBC 'High Country'
  Superior powered 7GCBC, both new and existing, are eligible for
  a Normal Category (NOT Acrobatic Category) gross weight increase to 1950 lbs.
  Thus, allows for easier cross country flight and non-acrobatic instruction operation.
  Contact us and we will type a new Flight Manual and mail it to you.
  This addition is standard on new aircraft.