# STC SA00073AT

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Whelen Aerospace Technologies, United States
- Description: Installation of main landing gear fairings.
- Applied: July 31, 1992
- Status date: January 24, 2023
- Product: Aircraft, Small Airplane
- Certification basis: Part 23
- Data sheets: [TCDS A7SO](https://openairdocs.org/tcds/A7SO)
- Certificate PDF: https://openairdocs.org/files/sha256/a7/78/a7783b8f013e021b3096c260513a4ca3a2f079f9c75f2ad72d23e93af7dde90e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID110570913020230206143404.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00073AT

## ADs that name it (0)

None.

## Approved models (5)

- Piper Aircraft Inc. PA-34-200 (Seneca) ([TCDS A7SO](https://openairdocs.org/tcds/A7SO))
- Piper Aircraft Inc. PA-34-200T (Seneca II) ([TCDS A7SO](https://openairdocs.org/tcds/A7SO))
- Piper Aircraft Inc. PA-34-220T (Seneca III) ([TCDS A7SO](https://openairdocs.org/tcds/A7SO))
- Piper Aircraft Inc. PA-34-220T (Seneca IV) ([TCDS A7SO](https://openairdocs.org/tcds/A7SO))
- Piper Aircraft Inc. PA-34-220T (Seneca V) ([TCDS A7SO](https://openairdocs.org/tcds/A7SO))

## 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.

SA00073AT Whelen Aerospace Technologies 51 Winthrop Road Chester, CT 06412 Part 23 Federal Aviation Regulations A7SO Piper PA-34 Series Installation of main landing gear fairings in accordance with LoPresti “Master Drawing List, Report No. 6, dated July 31, 1992, 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.

July 31, 1992 January 16, 2019; January 24, 2023 January 14, 1993 March 23, 1993 (for) Robert P. Capezzuto Acting Manager, Atlanta ACO Branch 2

SA00073AT 2

## Every issue (2)

- January 24, 2023: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/a7/78/a7783b8f013e021b3096c260513a4ca3a2f079f9c75f2ad72d23e93af7dde90e)
- January 16, 2019: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/eb/e3/ebe3e74942def623bf33def03c019a283c0b803470c3a782e2e6fe162259b8a1)

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