# STC SA2631NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: AAR Oklahoma Inc, United States
- Description: Installation of a Harrison Intercooler (Cessna P/N 633400) system.
- Applied: January 24, 1984
- Status date: July 22, 1988
- Product: Aircraft
- Certification basis: Part 21
- Data sheets: [TCDS 3A21](https://openairdocs.org/tcds/3A21)
- Certificate PDF: https://openairdocs.org/files/sha256/90/9c/909c9d0056a74ce30cc47f49fdbd404697deb94264d5dcfd1b25cca580ff9a0e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/86B71D5D59B240E7862579DD0064C342.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2631NM

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company T210N ([TCDS 3A21](https://openairdocs.org/tcds/3A21))

## 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 SA2631NM This certificate issued to: AAR OKLahoma, INC.

Pert 3 of the Civil Air Fregulations:

Original Product - Type Certificate Number: 3A21 Make: Cessna Model: T21ON Description of Type Design Change: . Installation of a Harrison Intercooler (Cessna P/N 633400) system in accordance with FAA sealed AAR Western Skyways Master Drawing List No. 210-1000, dated July 26, 1984.

Limitations and Conditions: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation of the Harrison Intercooler (Cessna P/N 633400) system on Cessna model T210N aircraft, Serial Number 21063958, Registration Number N4594Y only. The modified airplane must be operated in accordance with the FAA Approved Airplane Flight Manual Supplement dated July 26, 1984, or later FAA approved revision. A copy of this Certificate and the FAA approved Flight Manual Supplement must be carried in the modified airplane at all times.

## Every issue (2)

- July 22, 1988: Issued, Current. [certificate](https://openairdocs.org/files/sha256/90/9c/909c9d0056a74ce30cc47f49fdbd404697deb94264d5dcfd1b25cca580ff9a0e)
- July 22, 1988: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/90/9c/909c9d0056a74ce30cc47f49fdbd404697deb94264d5dcfd1b25cca580ff9a0e)

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