# STC SA4708NM - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Air Mods NW, United States - Description: Installation of bolts to strengthen the nose gear torque tube assembly. - Applied: June 22, 1988 - Status date: August 20, 2019 - Product: Aircraft, Small Airplane - Certification basis: Part 21 - Data sheets: [TCDS A11EA](https://openairdocs.org/tcds/A11EA), [TCDS A16EA](https://openairdocs.org/tcds/A16EA) - Certificate PDF: https://openairdocs.org/files/sha256/03/be/03be81055850ad397ed70af729a966e77063aa3673445e01685c897264433449 - Approved model list and other attachments: [AML_SA4708NM.pdf](https://openairdocs.org/files/sha256/d1/51/d151f525643e99a7f2844a39117c697bd433ae8776f9b124d8aec38cb82fd0d9) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D084AC2C745A556C862585DE0046AA78.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA4708NM ## ADs that name it (0) None. ## Approved models (7) - Tiger Aircraft LLC AA-1 ([TCDS A11EA](https://openairdocs.org/tcds/A11EA)) - Tiger Aircraft LLC AA-1A ([TCDS A11EA](https://openairdocs.org/tcds/A11EA)) - Tiger Aircraft LLC AA-1B ([TCDS A11EA](https://openairdocs.org/tcds/A11EA)) - Tiger Aircraft LLC AA-1C ([TCDS A11EA](https://openairdocs.org/tcds/A11EA)) - Tiger Aircraft LLC AA-5 ([TCDS A16EA](https://openairdocs.org/tcds/A16EA)) - Tiger Aircraft LLC AA-5A ([TCDS A16EA](https://openairdocs.org/tcds/A16EA)) - Tiger Aircraft LLC AA-5B ([TCDS A16EA](https://openairdocs.org/tcds/A16EA)) ## 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. United States of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate This certificate has been reissued to replace the original certificate reported lost. Number SA4708NM This certificate, issued to Air Mods N.W. 1424 Ridge Ave Snohomish, WA 98290 Part * of the * Regulation, Original ProductType Certificate Number: * *See attached Approved Model List Make: * (AML) No. SA4708NM for list of Model: * approved aircraft models and applicable regulations. Description of the Type Design Change: Installation of bolts to strengthen the nose gear torque tube assembly in accordance with Air Mods N.W. Drawings Nos. KD325MD-1 and KD325MD-2, or later Federal Aviation Administration (FAA) approved revision. Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to other aircraft of this model series unless the installer determines that the relationship between this change and any other previously incorporated approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this certificate, and the FAA Approved Model List (AML) No. SA4708NM dated February 28, 1989, or later FAA approved revision, must be maintained as part of the permanent records of the modified aircraft. 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: June 22, 1988 Date reissued: August 20, 2019 Date of issuance: February 28, 1989 Date amended: FAA FORM 8110-2 (5/14) PAGE 1 OF 2 PAGES By direction of the Administrator (Signature) Manager, Seattle ACO Branch (Title) Transfer the ownership of Supplemental Type Certificate Number to (Name of Transferee) (Address of Transferee) (Number and Street) (City, State, and ZIP Code) from (Name of Grantor) (Print or Type) (Address of Grantor) (Number and Street) (City, State, and ZIP Code) Signature of Grantor (In Ink): ### AML_SA4708NM.pdf This is OCR from the scanned FAA attachment. OCR can misread letters and numbers. Issue Date: February 28, 1989 AML AMENDMENT DATE AFM SUPPLEMENT NUMBER/DATE N/A N/A Acting Manager, Seattle Aircraft Certification Office FAA APPROVED MODEL LIST (AML) NO. SA4708NM FOR NOSE GEAR REINFORCEMENT FAA SEALED CERTIFICATION DRAWING/ DRAWING LIST BASIS REVISION NO. FOR AND DATE NUMBER ALTERATION FAR Part 23, dated 1R KD325 February 1, 1965 KD325 1R FAR Part 23, dated February 1, 1965 Page 1 of 1 ORIGINAL TYPE CERTIFICATE NUMBER A11EA A16EA AIRCRAFT MODEL |GULFSTREAM|AA-1, AA-1A| | AA-1B and LAA-1C GULFSTREAM| AA-5, AA-5A AMERICAN land AA-5B **AIRCRAFT MAKE AMERICAN** **ITEM N** ## Every issue (2) - August 20, 2019: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/03/be/03be81055850ad397ed70af729a966e77063aa3673445e01685c897264433449), [AML_SA4708NM.pdf](https://openairdocs.org/files/sha256/d1/51/d151f525643e99a7f2844a39117c697bd433ae8776f9b124d8aec38cb82fd0d9) - February 28, 1989: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/d6/58/d658194205801f638b862e464b3cecaa14dcc515b47ec30d982deeb1e489b5cc), [AML_SA4708NM.pdf](https://openairdocs.org/files/sha256/d1/51/d151f525643e99a7f2844a39117c697bd433ae8776f9b124d8aec38cb82fd0d9) --- 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.