Aeronca.com
General and detailed information for Aeronca pilots, restorers, and enthusiasts.
 


Here are some reproduced service letters and memos from the private collection of Aeronca owners.   For official copies of these documents, please contact the type certificate holder.  Use at your own risk.

Do you have any Service Letters that you'd like to have posted here. 
Please send them to me.

Aeronca Champs and Chiefs Service Letters
Svc
Ltr
Online copy (PDF) Description
2 Service Letter 2 535 KB
STC Letter 143 KB
Note: This is not an official Aeronca service letter.  This is actually STC SA3-435 owned
by David Owen in which is calls this STC Service Letter 2.  
Also included is a sample letter from David Owen approving the use of the STC for N82888.
3 Coming Soon Wing Tim Bow Repair, 7AC, 7B, 7C, 7D, 7E, 11A, 11B, 11C
6 Service Letter 6  71 KB Factory approved repair of landing gear and attaching fittings on models 7AC, 7BCM, 7CCM, 7DC, 11AC, 11BC, 11CC (jm)
7 Service Letter 7  115 KB Conversion of model 15AC landplane into a S15AC seaplane. (jm)
8 Service Letter 8  48 KB Conversion of model 11CC landplane into a S11CC seaplane. (jm)
9 Service Letter 9  42 KB Conversion of model 7DC landplane to s7DC seaplane
10 Service Letter 10  73 KB Factory approved repair of No. 2-705 control stick socket and No. 1-2383 control stick connecting tube on models 7AC, 7BCM, 7CCM, and 7DC. (rj)
11 Service Letter 11  31 KB Factory installation of 1-2565 bronze oleo bushing in 7-436 oleo case frame.  (jm)
13 Service Letter 13  342KB Conversion of model 7AC to model 7BCM airplane using a carburetor type engine.
14 Service Letter 14  667KB Conversion of model 7AC to model 7DC airplane using a carburetor type engine.
15 Service Letter 15 583KB Conversion of model 7AC to model 7CCM airplane using a carburetor type engine. (mn)  Including  Supp No. 1
15 Champion SL 15  290KB Champion Service Letter #15.   Updated by Champion on Jan 20, 1960. (rj)
17 Service Letter 17  444KB Conversion of model 11AC to model 11BC airplane using a carburetor type engine. (rj)
19 Service Letter 19  195KB Factory approved repair of elevator and rudder hinges for 7AC, 7BCM, 7CCM, 7DC, 11AC, 11BC, and 11CC. (rj)
20 Champion SL 20 375KB Installation instructions - "No Bounce" landing gear oleo assembly. (rj)
24 Coming Soon Cruising R.P.M. for Models 7BCM, 7DC, and S7DC airplanes
26 Service Letter 26 (580KB)
Drawing S15 (317KB)
Drawing S16 (294KB)
Drawing S17 (212KB)
Drawing S18 (260KB)
Drawing 4-732 (3 MB)
Engine Cooling for 7AC and 11AC.  The purpose is to provide various means for lowering oil, cylinder head and cylinder barrel operating temperatures.
56 Champion SL 56 1.7MB Convert a model 7AC to a model 7EC using a carburetor type engine.
     

Champion Service Letters
Svc
Ltr
Online copy (PDF) Description
2 Service Letter 2 535 KB
STC Letter 143 KB
Note: This is not an official Aeronca service letter.  This is actually STC SA3-435 owned
by David Owen in which is calls this STC Service Letter 2.  
Also included is a sample letter from David Owen approving the use of the STC for N82888.
4 Service Letter 4  14 KB 7EC Remove placard "Avoid Abrupt Throttle Operation." (jm)
     
     
     





Champion Service Helps & Hints

Helps
& Hints
Online copy (PDF) Description
     
17 Helps & Hints 17 (1.8 MB) Nose Rib Replacement
     

 

 

Continental Engines
  • M47-16 and Supplement #1 (PDF) 1.6MB - 17 pages
  • M64-6 (PDF) - 346KB - 2 pages
      Prevention of idling failures on four-cylinder engine and acceleration problem most frequently encountered when OAT is 32 F or below.
  • M65-14 (PDF) 75KB - 1 page - Conversion of Engines from One Model to Another

Aeronca K, C3, C2
  • M-3  Converting the E-113B to the E-113C
  • M-4  M-4 Desciption and Features of the AERONCA E-113C engine
  • M-12 Lapping the propeller hub to the crankshaft.
  • M-19 Torsion linkage at bottom of landing gear oleo
  • M-20 Control cable guard, Servicing oleo shock absorber, throttle
  • M-21 Control wheel shaft universal joints
  • M-23 Upper elevator cable
  • M-24 Rudder cables
  • M-25 Tail wheel assembly
  • M-26 Cabin heater
  • M-27 Ski installation
  • M-28 Inspection of the propeller end of crankshaft
  • M-32 Servicing landing gear
  • M-33 Recommended oils
  • M-34 Checking and resetting the magneto timing
  • M-35 Interference of cable guard with operation of rudder pedals
  • M-36 Offer to upgrade engine with tapered crankshaft to a splined-end crankshaft.
  • M-49 Throttle Controls
  • M-60 Top seat rail
  • M-65 Inspection and replacement of 3/32 control cables