# STC SA2712CE - Type: Supplemental type certificate - Status: Current, Amended - Holder: Learjet Inc, United States - Description: Installation of Universal navigation systems (UNS) CVR-80 or CVR-30 cockpit voice recorder. - Status date: August 4, 1992 - Product: Aircraft, Small Multi-Engine - Certification basis: Part 21 - Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE) - Certificate PDF: https://openairdocs.org/files/sha256/9b/1f/9b1fce130acc7817ae5ffef750298f0ed19c8de58d9522497e4e395bd4d6b531 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B7DD0897C6B4E77885256CC20008C7CE.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA2712CE ## ADs that name it (0) None. ## Approved models (14) - Learjet Inc. Learjet 24 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE)) - Learjet Inc. Learjet 24A ([TCDS A10CE](https://openairdocs.org/tcds/A10CE)) - Learjet Inc. Learjet 24B ([TCDS A10CE](https://openairdocs.org/tcds/A10CE)) - Learjet Inc. Learjet 24C ([TCDS A10CE](https://openairdocs.org/tcds/A10CE)) - Learjet Inc. Learjet 24D ([TCDS A10CE](https://openairdocs.org/tcds/A10CE)) - Learjet Inc. Learjet 24E ([TCDS A10CE](https://openairdocs.org/tcds/A10CE)) - Learjet Inc. Learjet 24F ([TCDS A10CE](https://openairdocs.org/tcds/A10CE)) - Learjet Inc. Learjet 25 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE)) - Learjet Inc. Learjet 25B ([TCDS A10CE](https://openairdocs.org/tcds/A10CE)) - Learjet Inc. Learjet 25C ([TCDS A10CE](https://openairdocs.org/tcds/A10CE)) - Learjet Inc. Learjet 25D ([TCDS A10CE](https://openairdocs.org/tcds/A10CE)) - Learjet Inc. Learjet 25F ([TCDS A10CE](https://openairdocs.org/tcds/A10CE)) - Learjet Inc. Learjet 28 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE)) - Learjet Inc. Learjet 29 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA2712CE This certificate issued to: Learjet Inc. 8220 W. Harry Wichita, KS 67277 Purt 25 of thE ederal Aviation Effective February 1, 1965 as amended and Special Conditions Regulalions. as delineated on Type Certificate Data Sheet No. A10CE. Original Product TypeCertificate Number: A10CE Make: Lear jet Model: Bị'28 and 29C, D, E, F; 25, 25B, C, D, Description of Type Design Change: Installation of Universal Navigation Systems (UNS) CVR-80 Cockpit Voice Recorder in accordance with: (1) Learjet Inc. Master Document List (MDL) No. T100078, Revision A, dated January 14, 1991, and (2) FAA Approved Airplane Flight Manual Supplement (AFMS) W1194 dated April 23, 1991, or later FAA Approved revisions of (1) or (2); or installation of UNS CVR-30 in accordance with: (3) Learjet Inc. MDL No. T100078, Revision C, dated September 16, 1991, and (4) FAA approved AFMS W1194, Reissue A, dated October 7, 1991, or Pitalind approved revisions of (3) or (4). This approval should not be extended to other specific airplanes of these models on which other previously approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of those airplanes. Date of Application: September 20, 1990 Date Reissued: Date of Issuance: April 23, 1991 Date Amended: October 7, 1991 FEDERAL AVIATION By Direction of the Administrator Laurence A. Henson (Signature ) TAHINIST RAID Wichita Aircraft Certification Office Lawrence A. Herron, Manager (Title) ## Every issue (1) - August 7, 1991: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/9b/1f/9b1fce130acc7817ae5ffef750298f0ed19c8de58d9522497e4e395bd4d6b531) --- 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.