# STC SA1989CE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: R C Allen Instruments Inc, United States
- Description: Installation of the AID/RCAI battery temperature monitor on the optional 20 cell battery as a secondary system.
- Applied: April 2, 1980
- Status date: February 11, 1991
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A27CE](https://openairdocs.org/tcds/A27CE)
- Certificate PDF: https://openairdocs.org/files/sha256/63/9a/639ae5c5fa3726c88a3bda4523c3fa2215141ac0b067629fa60f223c4fb2be14
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E83A6F78A0DDCE3186258061006F4642.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1989CE

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 551 ([TCDS A27CE](https://openairdocs.org/tcds/A27CE))

## 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: SA1989CE This certificate issued to: R. C. Allen Instruments, INC.

535 S. Topeka Wichita, KS 67202 Purt 23 of thFederal Aviation Regulations.

Original Product -Type berlificate Number: AZTCE Make: Cessna Model: 551 Description of Type Design Change: Installation of the AID/RCAI Battery Temperature Monitor on the optional 20 cell battery as a secondary system in accordance with AID/RCAI Installation Instructions Kit No.

29-310, revised July 30, 1980, and Airplane Flight Manual Supplement for Cessna Model 551 dated April 27, 1984, or later FAA Approved revisions.

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.

Date of Application: APri1 2, 1980 Date Reissued: August 21, 1991 Date of Issuance: october 11, 1984 Date Amended:

FEDERAL AVIATION By Direction of the Administrator Kaurence A. Herson (Signature) TO MINISTRATIO Lawrence A. Herron, Manager Wichita Aircraft Certification Office (Title) 47 FAA FORM 8110-2 (10-68)

## Every issue (1)

- February 11, 1991: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/63/9a/639ae5c5fa3726c88a3bda4523c3fa2215141ac0b067629fa60f223c4fb2be14)

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