Service and Technical Documents



 
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.