US Departmentof TransportationFederal AviationAdministration

MAJOR REPAIR AND ALTERATION(Airframe, Powerplant, Propeller, or Appliance)

For FAA Use Only

Form Approved "Electronic Tracking NumberOMS No. 2120-00202128/2011

INSTRUCTIONS: Print or type all entries. See Title 14 CFR §43.9, Part 43 Appendix B, and AC 43.9-1 (or subsequent revision thereof) forinstructions and disposition of this form. This report is required by law (49 U.S.C. §44701). Failure to report can result in a civil penalty for eachsuch violation. (49 U.S.C. §46301 (a»

2. Owner

1. Aircraft Make

Nationality and Registration Mark

N3129ESerial No.

7AC-6726

Extended range fuelper 14 CFR Part 43App. B

FAA Designee

AeroncaModel I Series

7AC-Conv ChampionName (As shown on registration certificate)

State WV.!....!...;'-- _

Address (As shown on registration certificate)Address RR 3 Box 24ACity Elizabeth

Zip 26143-9319 Country USAPropst, John E.3. For FAA Use On Iv

5. Unit Identification4. Type

Repair Alteration Unit

0 0 AIRFRAME

0 0 POWERPLAN1

0 0 PROPELLER

Type

D D APPLIANCEManufacturer

Model Serial No.Make

(As described in item 1above)

6. Conformity Statement

State INV>WL..>'-- __

Certificated MaintenanceOrganization A&P 2228906

B. Kind of AgencyA. Agency's Name and Address

Name C William Pancake ,IRAddress RR 4 Box 218City KeyserZip 26726 countryUSA

Certificated Repair Station

I Manufacturer

D. I certify that the repair andlor alteration made to the unit(s) identified in item 5 above and described on the reverse or attachments heretohave been made in accordance with the requirements of Part 43 of the U.S. Federal Aviation Regulations and that the informationfurnished herein is true and correct to the best of my knowledge.

.; U. S. Certificated Mechanic

Foreign CertificatedMechanic C. Certificate No.

o 28 September 2009

Signature/Date of Authorized Individual

7. Approval for Return to ServicePursuant to the authority given persons specified below, the unit identified in item 5Administrator of the Federal Aviation Administration and is [21 Approved

by thewas inspected in the manner prescribedo Rejected

FAA FIt. Standards I PersonsApproved by CanadianManufacturer Maintenance OrganizationInspector Departmentof TransportBY ~-+~~==~----~--~------------~--+---------------------~O~t~h~er-(~s~p-eC~i7~~}-----------------------;

,f Inspection AuthorizationRepair Station

Certificate orDesignation No.

IA222S9OGFAA Form 337 (10-06)

Signature/Date of Authorized Individual

NOTICEWeight and balance or operating limitation changes shaJl be entered in the appropriate aircraft record. An alteration must becompatible with all previous alterations to assure continued conformity with the applicable airworthiness requirements.

8. Description of Work Accomplished(If more space is required, attach additional sheets. Identify with aircraft nationality and registration mark and date work completed.)

IN3129E I§8 September 2009

Nationalityand RegistrationMark Date

September 1995 or there about this aircraft was converted from an Aeronca 7AC to a 7BCM in accordance withAeronca Service letter 13 and a C85-12F Continental engine was installed. The Service letter 13 called for Hanlon &Wilson muffler Kit 192. These mufflers are rare and hard to find. Cessna 150 mufflers are very similar and have beenused as a replacement for years on Aeroncas with no problems. These Cessna mufflers were installed at this earlierdate with no approval. I have inspected this muffler exhaust system and have determined it to be airworthy.

This installation included the following Cessna 150 engine exhaust system parts.2 EA Shroud assembly Part No. 0450335-31 EA Muffler (left) Part No. 0450400.,.,,)1,11 EA Muffler (Right) Part NO.045040fl,,-2§ .' '''',~J'2 EA Stub Stack Part No. 0450338-1'4'11~·tlmulr"·

2 EA Clamp Assembly Part No. 0550176-502 EA Clamp Half Part No. 0450338~9"'.~'h'~.;'~".m..=.~'."n>2 EA Clamp Half Part No. 0450338::fdt·

7 "'c':.'·1 EA Tail Pipe (Left) Part No. 0450338-571 EA Tail Pipe (Right) Part No. 0450338-55Total weight of installed parts 8.4 Ibs

Removed Aeronca cabin heat valve Pn 3-503 and installed Champion high output cabin heat valve Pn 4-972 inaccordance with Aeronca/Champion Service letter # 28. Weight change is negliuible for this cabin heat valvealteration.

The preceding installations were accomplished in accordance with AC43.13-1 B, Chapter 8, Section 3, Cessna 150Service Manual, and the Aeronca Service Manual. A new weight and balance has been recorded in the aircraftdocuments. A log book entry detailing this alteration has been entered in the permanent aircraft logbook.

Instruction For Continued Airworthiness

1. Introduction: See above. Aeronca 7AC-67262. Description: Exhaust/muffler system to provide necessary heat source to supply cabin and carburetor heat.3. Control: Do not exceed engine operating limitations as provided by the engine manufacturer.4. Service Information: Check for ADs and Service Bulletins.5. Maintenance Instructions: This alteration will be maintained by Annual or 100 Hour Inspection. FAR Part 43,

Appendix "0", Item (d), (8), (10), and AC43.13-1B. Chapter 8, Section 3, and the Cessna 150 Service Manual and allcurrent and future Airworthiness Directives pertaining to Cessna exhaust systems.6. Trouble Shooting: Probable malfunctions could include cracking of muffler/stub pipe assemblies. Detection ofmalfunctions: visual presence of cracking of muffler/stub pipe assemblies. Failure to detect presence of carburetorheat during engine operation and evidence of exhaust smell.7. Removal and Replacement: See Aeronca 7AC Service Manual and Cessna 150 Service Manual and Parts Manual

for installation, removal, and parts replacement information.8. Diagram: N/A9. Special Inspection Requirements: N/A10. Application of Protective Treatment: N/A11. Data: See Aeronca 7AC Service Manual and Cessna 150 Service Manual for exhaust system mounting fastenertorque information.

o Additional Sheets Are Attached

FAA Form 337 (10·06)

0 FormApproved IElectronicTrackingNumberOMS No.2120-0020

MAJOR REPAIR AND ALTERATION m812011

us Department ForFAAUseOnlyof Transportation (Airframe, Powerplant, Propeller, or Appliance)FederalAviationAdministration

INSTRUCTIONS: Print or type all entries. See Title 14 CFR §43.9, Part 43 Appendix B, and AC 43.9-1 (or subsequent revision thereof) forinstructions and disposition of this form. This report is required by law (49 U.S.C. §44701). Failure to report can result in a civil penalty for eachsuch violation. (49 U.S.C. §46301(a)

Nationality and Registration Mark Serial No.

1. AircraftN3129E 7AC-6726Make Model I Series

Aeronca 7AC-Conv ChampionName (As shown on registration certificate) Address (As shown on registration certificate)

2. OwnerAddressRIL1..Bmr. 24ACity Elizabeth StateVVV

Propst, John E. Zip 26143-9319 CountryUSA

3. For FAA Use Onlv

"The technics; data identified herem hu been fOWld to comply withthe applicable airworthiness requiroirleuts ad illhereby approved for use:onlyon the above described aircraft, subject to conformity inspectionbya person in §43.7.~ '. ~!Ii-.j·-;'tJ7 aw/~~ui;Date Signature of F: 01, AEA-FSDO-07

4. Type 5. Unit Identification

Repair Alteration Unit Make Model Serial No.

D [{] AIRFRAME (As described in Item 1 above)

D D POWERPLAN1

D 0 PROPELLER

Type

D 0 APPLIANCE Manufacturer

-6. Conformity StatementA. Agency's Name and Address B. Kind of AgencyName C William Pancake ,JR ,f u. S. CertificatedMechanic I ManufacturerAddressRR 4 Box 218 Foreign CertificatedMechanic C. Certificate No.City Keyser State \fIN Certificated Repair Station

Zip 26726 Country USA Certificated MaintenanceOrganization A&P 2228906

D. I certify that the repair and/or alteration made to the unit(s) identified in item 5 above and described on the reverse or attachments heretohave been made in accordance with the requirements of Part 43 of the U.S. Federal Aviation Regulations and that the informationfurnished herein is true and correct to the best of my knowledge.

Extended range fuel Signature/Date of Authorized Individualper 14 CFR Part 43 D (},-zJ~ -P~,~. 28 September 2009App.B

7. Approval for Return to Service

Pursuant to the authority given persons specified below, the unit identified in item 5 was inspected in the manner prescribed by theAdministrator of the Federal Aviation Administration and is []I Approved o Rejected

FAA FIt. Standards Manufacturer Maintenance Organization I PersonsApproved by CanadianInspector Departmentof Transport

BY Other (Specify)FAA Designee Repair Station .f Inspection Authorization

Certificate or Signature/Date of Authorized IndividualDesignation No.

(]'V~P~I~'IA 2228906 2J3S~tember 2009~ vFAA Form .j37 (10-06)

NOTICE

Weight and balance or operating limitation changes shall be entered in the appropriate aircraft record. An alteration must becompatible with a/l previous alterations to assure continued conformity with the applicable airworthiness requirements.

8. Description of Work Accomplished(If more space is required, attach additional sheets. Identify with aircraft nationality and registration mark and date work completed.)

IN3129E Ifa September 2009

Nationality and Rt~gistrationMark Date

12. List of Special Tools: N/A13. For commuter Category Aircraft: N/A14. Recommended Overhaul Period: No additional overhaul time limitations.15. Airworthiness Section: No additional airworthiness limitations.16. Revision: N/A

END

r;

o Additional Sheets Are Attached

FAA Form 337 (10-06)