# STC SA1005CE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Aircraft Instrument & Development, Inc, United States - Description: Installation of AID, battery temperature monitor, and over- temperature warning system. - Status date: February 11, 1993 - Product: Aircraft, Small Multi-Engine - Certification basis: Part 21 - Data sheets: [TCDS 2A4](https://openairdocs.org/tcds/2A4) - Certificate PDF: https://openairdocs.org/files/sha256/ac/f1/acf182b405ae37d620a7f9a8c2569e2fd0e391d47214d46804fc36dc605b9deb - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A0B72C40038C9EC585256CC10080DC08.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA1005CE ## ADs that name it (0) None. ## Approved models (1) - Twin Commander Aircraft Corporation 681 ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) ## 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: SA1005CE This certificate issued to: R. C. Allen Instruments, INC. 535 S. Topeka Wichita, KS 67202 Purt 3 f the Civil Air Regulations. Original Product - Type Pertificate Number: 284 Make: Aero Commander Model: 681 Description of Type Design Change: Installation of Aircratt Instrument d Development, Inc. (AID), Battery Temperature Monitor and Over Temperature Warning System in accordance with AID's Installation Instructions for Kit No. 29-304, Revision B, dated March 6, 1974, and FAA Approved Airplane Flight Manual Supplement for the Aero Commander Model 681, dated March 19, 1974. Limitations and Conditions: 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. Except for airplane Serial Numbered 6025, parts manufactured and installed under this STC must be approved and marked in accordance with the requirements of FAR 21.303 and FAR 45.15. Date of Application: API11 20, 1972 Date Reissued: August 1, 1991 Date of Issuance: March 19, 1974 Date Amended: FEDERAL AVIATION By Direction of the Administrator Ronald I. Ratheden *MINISTRATION Oh Lawrence A. Herron, Wichita Aircraft Certification Office Manager (Title) 000, or imprisonment not exceeding 3 vears, or both. ## Every issue (1) - August 1, 1991: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/ac/f1/acf182b405ae37d620a7f9a8c2569e2fd0e391d47214d46804fc36dc605b9deb) --- 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.