# STC SA02057AT

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Whelen Aerospace Technologies, United States
- Description: Installation of a composite nose bowl.
- Applied: July 14, 1999
- Status date: August 19, 2022
- Product: Aircraft, Small Airplane
- Certification basis: Part 21, Part 23
- Data sheets: [TCDS A16EA](https://openairdocs.org/tcds/A16EA)
- Certificate PDF: https://openairdocs.org/files/sha256/79/6c/796c960b583afd14d31905c50e2d9554e34c88743235bbfed45646b754a5c164
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/64F935D40B8CE19E862588A600581E09.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA02057AT

## ADs that name it (0)

None.

## Approved models (3)

- True Flight Holdings LLC AA-5 ([TCDS A16EA](https://openairdocs.org/tcds/A16EA))
- True Flight Holdings LLC AA-5A ([TCDS A16EA](https://openairdocs.org/tcds/A16EA))
- True Flight Holdings LLC AA-5B ([TCDS A16EA](https://openairdocs.org/tcds/A16EA))

## 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.

Title: (for) Christina M. Underwood Manager, Atlanta ACO Branch Compliance and Airworthiness Division Aircraft Certification Service SA02057AT Whelen Aerospace Technologies 51 Winthrop Road Chester, CT 06412 Part 23 Federal Aviation Regulations A16EA American General AA-5, AA-5A, AA-5B Installation of composite nose bowl in accordance with LoPresti Master Drawing List Report No. 45, Rev A, dated December 7, 2000 or later FAA approved revision.

This approval should not be extended to other aircraft of the 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 produce no adverse effect upon the airworthiness of that airplane. (Continued on Page 3).

July 14, 1999 May 12, 2022, August 19, 2022 December 21, 1999 3

SA02057AT

SA02057AT Limitations & Conditions (Continued):

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.

## Every issue (2)

- August 19, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/79/6c/796c960b583afd14d31905c50e2d9554e34c88743235bbfed45646b754a5c164)
- January 16, 2019: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/7c/ae/7cae10a3e546f99c81c8f9cc4ae2483b8129569186dc5e71394d89caa8dd955e)

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