# STC SE01652WI - Type: Supplemental type certificate - Status: Current, Issued - Holder: Radial Engines Ltd, United States - Description: Modification of engine to replace contact points and condenser controlled Bendix Scintilla WL-7A battery timer (distributor) with an electronically controlled WL-7A-M battery timer. - Applied: March 26, 2011 - Status date: December 20, 2011 - Product: Engine - Certification basis: Part 13, Part 21 - Data sheets: [TCDS TC 121](https://openairdocs.org/tcds/TC%20121), [TCDS TC 195](https://openairdocs.org/tcds/TC%20195), [TCDS E-237](https://openairdocs.org/tcds/E-237), [TCDS E1SW](https://openairdocs.org/tcds/E1SW), [TCDS E-162](https://openairdocs.org/tcds/E-162) - Certificate PDF: https://openairdocs.org/files/sha256/f8/14/f8143105b7f7af8348a16ebec1373a230dc591d4b13f2ee5a774de18e8f7f0fd - Approved model list and other attachments: [SE01652WI_AML.pdf](https://openairdocs.org/files/sha256/3b/b9/3bb94c771ec93f07547f7286a81194f9ea26b8cc3b49fdea2ea0cf80e830c130) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/78D976A3711DB0B2862579AE005D4A8F.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SE01652WI ## ADs that name it (0) None. ## Approved models (10) - Air Repair Inc. L-4 ([TCDS TC 121](https://openairdocs.org/tcds/TC%20121)) - Air Repair Inc. L-4 Series ([TCDS TC 121](https://openairdocs.org/tcds/TC%20121)) - Air Repair Inc. L-6 Series ([TCDS TC 195](https://openairdocs.org/tcds/TC%20195)) - Air Repair Inc. R-755A1 ([TCDS E-237](https://openairdocs.org/tcds/E-237)) - Air Repair Inc. R-755A2 ([TCDS E-237](https://openairdocs.org/tcds/E-237)) - Air Repair Inc. R-755B1 ([TCDS E-237](https://openairdocs.org/tcds/E-237)) - Air Repair Inc. R-755B2 ([TCDS E-237](https://openairdocs.org/tcds/E-237)) - Air Repair Inc. R-755S ([TCDS E1SW](https://openairdocs.org/tcds/E1SW)) - Teledyne Continental Motors W670-23 ([TCDS E-162](https://openairdocs.org/tcds/E-162)) - Teledyne Continental Motors W670-M ([TCDS E-162](https://openairdocs.org/tcds/E-162)) ## What the certificate says Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record. This certificate issued to: Radial Engines Ltd 602 E. Renner Field Rd P. O. Box 736 Goodland, KS 67735 Part 13 of the Civil Air Regulations. (Modifications approved to CAR 13 dated June 15, 1956 amendments 13-1 through 13-3) Original Product - Type Certificate Number : * *See attached FAA Approved Model List (AML) Make: * No. SE01652WI for list of approved engine models Model: * and applicable airworthiness regulations Description of Type Design Change: Modification of engine to replace contact points and condenser controlled Bendix Scintilla WL-7A battery timer (distributor) with an electronically controlled WL-7A-M battery timer. Data required: Documents as listed in Radial Engines Ltd. Master Document List Report REL1009-4, Revision (IR), dated March 26, 2011 (which includes Radial Engines Ltd, Instruction for Continued Airworthiness REL1009-8, Revision (IR), dated March 26, 2011) as listed on AML No. SA01652WI Revision -, or later FAA Approved revisions. 1. Approval of this type design is limited to Bendix Scin tilla WL-7A battery timers installed only in the above listed engine models. 2. Compatibility of this design change with previously approved modifications must be determined by the installer. 3. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission. Date of application : March 26, 2011 Date of issuance : December 20, 2011 Date reissued : Original signed by Tina Miller ( Signature) Tina L. Miller Program Manager Wichita Aircraft Certification Office (Title) ### SE01652WI_AML.pdf **FAA APPROVED MODEL LIST (AML) NO. SE01652WI** Radial Engines Ltd for conversion of Bendix Scintilla WL-7A battery timer (distributor) to electronic control on CAM 13 engines Issue Date: December 20, 2011 Page 1 of 1 ITEM ENGINE MAKE ENGINE MODEL **ORIGINAL TYPE** **CERTIFICATE NUMBER** **CERTIFICATION** **BASIS FOR** ALTERATION (See TCDS) MASTER DOCUMENT LIST REVISION/DATE[1] AFM **SUPPLEMENT** **NUMBER/DATE AML** **AMENDMENT DATE** 1 Jacobs R-755A1, R-755A2 R-755B1, R-755B2 E-237 TCDS E-237 Revision 11 January 2, 2002 REL1009-4 Revision IR March 26, 2011 N/A 2 Jacobs L-4, L4MB, R-755-9 121 TCDS 121 Revision 1 January 2, 2002 REL1009-4 Revision IR March 26, 2011 N/A 3 Jacobs L-6, L-6MB R-915 195 TCDS 195 Revision 1 January 2, 2002 REL1009-4 Revision IR March 26, 2011 N/A 4 Jacobs R-755S E1SW TCDS E1SW Revision 7 January 2, 2002 REL1009-4 Revision IR March 26, 2011 N/A 5 Teledyne- Continental Motors W670-M W670-23 E-162 TCDS E-162 Revision 12 December 15, 1973 REL1009-4 Revision IR March 26, 2011 N/A [1] Or later FAA approved revision FAA Approved:_ Original signed by Tina Miller Tina Miller, Program Manager Wichita Aircraft Certification Office ## Every issue (1) - December 20, 2011: Issued, Current. [certificate](https://openairdocs.org/files/sha256/f8/14/f8143105b7f7af8348a16ebec1373a230dc591d4b13f2ee5a774de18e8f7f0fd), [SE01652WI_AML.pdf](https://openairdocs.org/files/sha256/3b/b9/3bb94c771ec93f07547f7286a81194f9ea26b8cc3b49fdea2ea0cf80e830c130) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.