# STC SA637GL

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Shadin Avionics, United States
- Description: Installation of a Shadin Company fuel flow indicating system.
- Applied: May 10, 1982
- Status date: June 8, 2006
- Product: Aircraft, Single-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 3A24](https://openairdocs.org/tcds/3A24)
- Certificate PDF: https://openairdocs.org/files/sha256/59/fa/59faef9dc78f9cbb3c27d019e6059f1dfb3e72184436e0912495bad1935c8ab2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/85015D82709BE3F3862575EF00502A65.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA637GL

## ADs that name it (0)

None.

## Approved models (2)

- Cessna Aircraft Company A185E ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- Cessna Aircraft Company A185F ([TCDS 3A24](https://openairdocs.org/tcds/3A24))

## 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.

Part 3 of the Civil Air Regulations.

(See Type Certificate Data Sheet No3A24 for complete certification basis.)

Installation of a Shadin Company Fuel Flow Indicating Syst em in accordance with Shadin Company Report Number 4040 dated May 10, 1982, revised August 31, 1984, other FAA approved revision.

1) This approval should not be extended to other airplanes of this model that incorporate any other previously approved modification, unless it is determined that the interrelationship between this change and any other previously approved modification will introduce no adverse effect on the airworthiness of these airplanes.

2) 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.

Shadin Avionics 6831 Oxford Street St. Louis Park, MN 55426 3A24 Make : Cessna Model : A185E, A185F

Date of application : May 10, 1982

Date of issuance : July 26, 1982

Date reissued : June 8, 2006

Date amended : January 9, 1985

( Signature) Charles L. Smalley Manager, Systems & Flight Test Branch Chicago Aircraft Certification Office

( Title)

## Every issue (1)

- June 8, 2006: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/59/fa/59faef9dc78f9cbb3c27d019e6059f1dfb3e72184436e0912495bad1935c8ab2)

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