# STC SA720SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sierra Industries, Inc, United States
- Description: Aerodynamic smoothing of outer wing.
- Applied: August 8, 1966
- Status date: December 1, 1999
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS LTC-13](https://openairdocs.org/tcds/LTC-13)
- Certificate PDF: https://openairdocs.org/files/sha256/6f/0a/6f0ab237ebfd816d679d1d356cfaf61731f08afcf8c6dff1d1b2f69df3b24574
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/465417C3AC477C4085256CC20056A20E.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA720SW

## ADs that name it (0)

None.

## Approved models (1)

- Lockheed Aircraft Corporation Navy PV-1 ([TCDS LTC-13](https://openairdocs.org/tcds/LTC-13))

## 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.

tza ©f .America of '(Erattspmrfctltmt - Jjfefccral JMitatum ^mmtatratton (Esrttftcate SA720SW sierra Industries, Inc., a Texas Corporation Garner Field Road Uvalde, TX 78801 ^ ectfvewd&n,^svpa*r>ern*i^ e/'^Z^ 9 o/'tfe Civil Air LTC-13 Lockheed Aircraft Corp.

PV-1 —^^cw**~y»«>»^ir»' uy i-*r*f*e> —zsca+cyfrv wftwrtytp.f S &f ^ dr Aerodynamic smoothing of outer wing according to The Dee Howard Company Process Specification No. 1.3 dated 9/28/65 and Drawing 15-0866-001 dated 10/10/66, revised 11/9/66.

1. Previous modification in accordance with STC SA2-455 required.

2. FAA Approved Airplane Flight Manual dated 6/21/61 required.

.• August 08, 1966 November 09, 1966 '.• December 1, 1999 (Signature) Michele M. Owsley, Manager Airplane Certification Office, Southwest Region (TVtte) Any alteration of thia certificate is punishable by a fine of not exceeding $1,000, or imprisonment not exceeding 3 years, or toth.

INSTRUCTIONS: The transfer cnciorsemem below may be used 10 notify the appropriate FAA Regional Office of the transfer of this Supplemental Type Certificate The FAA will reissue the certificate in the name of the transferee and forward it to him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number .

to (Name of transferee) (Address of transferee) (Number and street) (Cily, State, and £1P code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) ( Cilf. Ulale. and ^IT rode) Extent of Authority (if licensing agreement):

Signature of grantor (In ink): ___

## Every issue (1)

- December 1, 1999: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/6f/0a/6f0ab237ebfd816d679d1d356cfaf61731f08afcf8c6dff1d1b2f69df3b24574)

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