# STC SA98CH - Type: Supplemental type certificate - Status: Current, Amended - Holder: Dakota Cub Aircraft, United States - Description: Installation of replacement wing ribs. - Applied: February 4, 1993 - Status date: January 13, 1997 - Product: Aircraft, Small Airplane - Certification basis: Part 21 - Data sheets: [TCDS 1A2](https://openairdocs.org/tcds/1A2), TCDS 708, TCDS 721, [TCDS A-691](https://openairdocs.org/tcds/A-691), [TCDS A-703](https://openairdocs.org/tcds/A-703), [TCDS A-740](https://openairdocs.org/tcds/A-740), [TCDS A-780](https://openairdocs.org/tcds/A-780), [TCDS A-797](https://openairdocs.org/tcds/A-797) - Certificate PDF: https://openairdocs.org/files/sha256/29/bd/29bd2cb874ae6aa0d8f40e4f1b33b47fbc8022dbcc51039ff1a8ea392f65169f - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9BF22B1F292F306585256CC2005A72A5.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA98CH ## ADs that name it (0) None. ## Approved models (27) - Piper Aircraft Inc. J3C-50S ([TCDS A-691](https://openairdocs.org/tcds/A-691)) - The New Piper Aircraft Inc. J3C-40 ([TCDS A-691](https://openairdocs.org/tcds/A-691)) - The New Piper Aircraft Inc. J3C-50 ([TCDS A-691](https://openairdocs.org/tcds/A-691)) - The New Piper Aircraft Inc. J3C-65 ([TCDS A-691](https://openairdocs.org/tcds/A-691)) - The New Piper Aircraft Inc. J3C-65S ([TCDS A-691](https://openairdocs.org/tcds/A-691)) - The New Piper Aircraft Inc. J4 ([TCDS A-703](https://openairdocs.org/tcds/A-703)) - The New Piper Aircraft Inc. J4A ([TCDS A-703](https://openairdocs.org/tcds/A-703)) - The New Piper Aircraft Inc. J4A-S ([TCDS A-703](https://openairdocs.org/tcds/A-703)) - The New Piper Aircraft Inc. J4B (TCDS 708) - The New Piper Aircraft Inc. J4E (Army L-4E) ([TCDS A-740](https://openairdocs.org/tcds/A-740)) - The New Piper Aircraft Inc. J4F (TCDS 721) - The New Piper Aircraft Inc. PA-11 ([TCDS A-691](https://openairdocs.org/tcds/A-691)) - The New Piper Aircraft Inc. PA-11S ([TCDS A-691](https://openairdocs.org/tcds/A-691)) - The New Piper Aircraft Inc. PA-12 ([TCDS A-780](https://openairdocs.org/tcds/A-780)) - The New Piper Aircraft Inc. PA-12S ([TCDS A-780](https://openairdocs.org/tcds/A-780)) - The New Piper Aircraft Inc. PA-14 ([TCDS A-797](https://openairdocs.org/tcds/A-797)) - The New Piper Aircraft Inc. PA-18 ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - The New Piper Aircraft Inc. PA-18-"125" (Army L-21A) ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - The New Piper Aircraft Inc. PA-18-"135" (Army L-21B) ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - The New Piper Aircraft Inc. PA-18-"150" ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - The New Piper Aircraft Inc. PA-18A ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - The New Piper Aircraft Inc. PA-18A-"135" ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - The New Piper Aircraft Inc. PA-18A-"150" ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - The New Piper Aircraft Inc. PA-18S ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - The New Piper Aircraft Inc. PA-18S-"125" ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - The New Piper Aircraft Inc. PA-18S-"135" ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - The New Piper Aircraft Inc. PA-18S-"150" ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. Ace- 115 < 2 United States of America PROJ. No. Department of Transportation Federal Aviation Administration SA75OCH-A Supplemental Type Certificate Number SA98 CH This certificate issued to: Dakota Cub Aircraft P. O. Box 797 Brandon, SD 57005 Part* * of the Regulations: * Original Product -Typelerificate Number: * *See attached FLA Approved Model List Make: * - (AML) No. SA98CH for list of approved Model: * airplane models and applicable airworthiness regulations. Installation of replacement wing ribs in accordance to the applicable drawings on Drawing List Report No. 0003, no revision, dated July 20, 1993, and Dakota Cub Aircraft Installation Instructions for Piper, Report 01, dated July 20, 1993, or later FAA approved revisions of the previous documents. Limilalins andbandilions This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate and FAA Approved Model List (AML) No. SA98CH, amended April 14,1994 or later FAA approved revision must be maintained as part of the permanent records for the modified aircrait. Date of Application: February 4, 1993 Jute missued: Date of Issuance: August 26, 1993 Jale umended April 14, 1994, July 26, 1994 EDERAL AVIATION By Direction of the Administrator Gregory J. Michal i (Signature) *MINISTRATOR Manager, Airframe Branch Chicago Aircraft Certification Office (Title) 47 FAA FORM 8110-2 (10-68) 8/26/93 AML AMENDMENT / DATE 4 - 14 - 94 4-14-94 4-14 - 94 4-14 - 94 7-26-94 7-26-94 7-26-94 ISSUE DATE: AFM SUPPLEMENT NUMBER/DATE N/A N/A N/A N/A N/A N/A N/A N/A N/A Gregory J. Michalik, Manager, Airframe Branch Chicago Aircraft Certification Office ST (AML) NO. SA98CH DAKOTA CUB AIRCRAFT INSTALLING REPLACEMENT WING RIBS INSTALLATION INSTRUCTIONS REVISION NUMBER NO. & DATE 7-20-93 Report No. 1 7-20-93 Report No. 1 7-20-93 Report No. 1 7-20-93 Report No. 1 7-20-93 Report No. 1 7-20-93 Report No. 1 7-20-93 Report No. 1 7-20-93 Report No. 1 7-20-93 Report No. 1 FOR CERTIFICATION ALTERATION FAA APPROVED MODEL ORIGINAL BASIS TYPE FOR CERTIFICATE NUMBER A - 691 CAR 4a CAR 3 1A2 CAR 4a A - 703 CAR 4a 708 CAR 4a A - 740 CAR 4a 721 A - 725 CAR 4a CAR 3 A -780 CAR 3 A - 797 FAA Approved: Amended: 7/26/94 AIRCRAFT MODEL PA-11, PA-11S, J3C-40, J3C-50, J3C-50S, J3C-65, J3C- 65S PA-18, PA-18A, PA - 18S, PA -18"135", PA - 18A"135", PA -18S"135", PA -18"150", PA -183"150". J4, J4A, J4A-S J4B J4E (Army L-4E) J4F J5C PA-12, PA-12S PA - 14 AIRCRAFT MAKE Piper Piper Piper Piper Piper Piper Piper Piper Piper ITEM SA674 CH-A United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SA98CH This certificate issued to: Dakota Cub Aircraft P. O. BOx 797 Brandon, SD 57005 Certifies that the change in the type design for the fellowing product with the limitations and conditions therefor as specified heron meets the airethiness requirements f Part * * of the Regulations. Original Product -Type bertificate Number:* *See attached FAA Approved Model List (AML) No. SA98CH for list of approved Mertel: * airplane models and applicable airworthiness regulations. Installation of replacement wing ribs in accordance to the applicable drawings on Drawing List Report No. 0003, no revision, dated July 20, 1993, and Dakota Cub Aircraft Installation Instructions for Piper, Report 01, dated July 20, 1993, or later FAA approved revisions of the previous documents. Luretart of ent's no model on which other previously approved modifications This approval should not be extended to other are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate and FAA Approved Model List (AML) No. SA98CH, amended April 14, 1994 or later FAA approved revision must be maintained as part of the permanent FASOLE FOR Ahe ModitjedALAGESe lasis for appraval shall renuin in effet until surrendered, suspended, renked, or a termination date is therwise established by the Administrator of the Federal Aviation Administration . Date of Application: February 4, 1993 Date Reissued: Date of Issuance: August 26, 1993 Palemended: April 14, 1994 FEDERAL AVIATION By Direction of the Administrator TOMINISTRATO Donald P. Michal, Manager Chicago Aircraft Certification Office (Title) 8/26/93 AML AMENDMENT/ DATE 4-14-94 4-14-94 4-14-94 4-14-94 Certification Office ISSUE Make: AFM SUPPLEMENT NUMBER/DATE N/A N/A N/A N/A N/A N/A Donald P. Michal, Manager FAA APPROVED MODEL LIST (AML) NO. SA98CH DAKOTA CUB AIRCRAFT INSTALLING REPLACEMENT WING RIBS INSTALLATION INSTRUCTIONS REVISION NO. & DATE NUMBER Report 7-20-93 No. 1 7-20-93 Report No. 7-20-93 Report No. 1 Report 7-20-93 No. 1 Report 7-20-93 No. 1 Report 7-20-93 No. FAA Approved: Chicago Aircraft 4/14/94 FOR CERTIFICATION BASIS FOR ALTERATION CAR 4a CAR 3 CAR 4a CAR 4a CAR 4a CAR 4a Amended: ORIGINAL CERTIFICATE NUMBER A-691 1A2 A-703 708 A-740 721 AIRCRAFT MODEL PA-11, PA-11S, J3C-40, J3C-50, J3C-50S, J3C-65, J3C-65S PA-18, PA-18A, PA-18S, PA-18"135" PA-18A"135" PA-18S"135", PA-18S "150" J4, J4A, J4A-S J4B J4E (Army L-4E) J4F AIRCRAFT MAKE Piper Piper Piper Piper Piper Piper ITEM United States of America ST246CH-A Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA98CH This certificate issued to: P. O. Box 797 Dakota Cub Aircraft Brandon, SD 57005 Part * of the * Regulations. * Original Product -Typelurtificale Number See attached FAA Approved Model List (AML) Make: *No. SA98CH for list of approved airplane Mickel: *models and applicable airworthiness Description of Type Design Change: regulations. Installation of replacement wing ribs in accordance with the applicable drawings on Drawing List Report No. 0003, no revision, dated July 20, 1993, and Dakota Cub Aircraft Installation Instructions for Piper, Report 01, dated July 20, 1993, or later FAA approved revisions of the previous documents. Similfins and mn which other previously approved modifications are This approval should not be extended to other aircraft incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate and FAA Approved Model List (AML) No. SA98CH or later FAA revision must be maintained as part of the permanent records for the modified aircraft. Date of Application: February 4, 1993 Sute wissued: Date of Issuance: August 26, 1993 Date Amended: FEDERAL AVIATION the Sidministrator (Signature) TO TRAID Donald P. Michal, Manage. Chicago Aircraft Certification Office (Title) 47. ISSUE DATE: 8/26/93 AML AFM AMENDMENT SUPPLEMENT DATE NUMBER/DATE N/A N/A N/A N/A Manager Certification Office FAA APPROVED MODEL LIST (AML) NO. SA98CH INSTALLING REPLACEMENT WING RIBS INSTALLATION INSTRUCTIONS REVISION NO. & DATE NUMBER 7-20-93 Report No. 01 7-20-93 Report No. 01 FAA APPROVED: Donald Michal, Chicago Aircraft DAKOTA CUB AIRCRAFT FOR CERTIFICATION BASIS FOR ALTERATION CAR 4a dated April 7, 1950 CAR 3 dated November 1, 1949 ORIGINAL TYPE CERTIFICATE NUMBER A-691 1A2 AIRCRAFT MODEL PA-11, PA-11S, J3C-40, J3C-50, J3C-50S, PA-18, PA- 18A, PA-18S, PA-184"13" PA-18S"135" PA-18"1150 PA-18S"150" AIRCRAFT MAKE Piper Piper ITEM ## Every issue (1) - January 13, 1997: Amended, Current. [certificate](https://openairdocs.org/files/sha256/29/bd/29bd2cb874ae6aa0d8f40e4f1b33b47fbc8022dbcc51039ff1a8ea392f65169f) --- 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.