# STC SA3525NM

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Power Systems Inc, United States
- Description: Modification of the exhaust system Continental Model TSIO-520-C & H engines.
- Applied: March 7, 1986
- Status date: June 26, 1992
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A21](https://openairdocs.org/tcds/3A21)
- Certificate PDF: https://openairdocs.org/files/sha256/a7/c3/a7c352139d033a25e2aad0aae01a1c513a1f1d926987acb2a96f3a4fd8ba7b28
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/67F5345AF8B4388885256CC2000A98EE.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3525NM

## ADs that name it (0)

None.

## Approved models (8)

- The Cessna Aircraft Company T210F ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210G ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210H ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210J ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210K ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210L ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210M ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The 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: SA3525NM This certificate issued to: Power Systems, INC.

Purt 3 of the CiViT Air Regulations. * Original Product - Type bertificate Number: 3A21 Make: Cessna Model: T210F, G, H, J, K, L, M, N Description of Type Design Change:

Installation of the exhaust system of the Continental Model TSIO-520-C & H engines in accordance with an FAA sealed copy of Frasier/Schauer Drawing No. 1, Sheets 1 through 5, and associated procedures dated March 15, 1985, or later FAA approved revision.

Limilalunsand Enditions Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate must be maintained as part of the permanent records for the modified aircraft. (See Continuation Sheet)

**FAA FOR 8110-2 (10-68)**

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA3525NM Limitations and Conditions: (Continued) NOTE: No significant change to airplane or engine performance was observed for this modification.

This approval applies to those airplanes equipped with an exhaust system consisting of the following major components:

PART NUMBERS DESCRIPTION 1250860-110 Tailpipe Assembly 1250860-104 Exhaust Stack Assembly - Front Right 1250860-105 Exhaust Stack Assembly - Turbo Inlet 1250860- 90 Exhaust Stack Assembly - No. 1 Cylinder 1250860-203 Exhaust Stack Assembly - Left Side This modification does not relieve the operator from the inspection requirements of AD 71-09-07.

- END- 47 PAGE 30F 3PAGES

## Every issue (1)

- June 26, 1992: Amended, Current. [certificate](https://openairdocs.org/files/sha256/a7/c3/a7c352139d033a25e2aad0aae01a1c513a1f1d926987acb2a96f3a4fd8ba7b28)

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