# STC SA2-821

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sierra Industries, Inc, United States
- Description: Installation of integral oil tanks
- Applied: June 19, 1959
- Status date: December 1, 1999
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS LTC AL-13](https://openairdocs.org/tcds/LTC%20AL-13)
- Certificate PDF: https://openairdocs.org/files/sha256/d0/d4/d0d4df277375e1b13ed7c4ed668fe67bf06a51980ec677be3990647e763782df
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0375D4939F0DA6AC85256CC10083D4E7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2-821

## ADs that name it (0)

None.

## Approved models (1)

- Air Trading Corporation Navy PV-1 ([TCDS LTC AL-13](https://openairdocs.org/tcds/LTC%20AL-13))

## 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: SA2-821 This certificate issued to: Sierra Industries, Inc., a Texas Corporation Garner Field Road Uvalde, TX 78801 Part 9 of the Civil Air Regulations.

Original Product Type Certificate Number: LTC-13 Make: Lockheed Aircraft Corp.

Model: PV- 1 Description of Type Design Change:

Installation of integral oil tanks in accordance with Howard Aero Dwg. Nos.

101100 Sheet 1 of 2, Rev. A dated 7/30/59, with Dwg. Change Notice 1 (2 sheets) dated 7/31/59 and sheet 2 of 2 Rev. 1.R dated 8/3/59; 101101 sheet 1 of 2 Revision B dated 11/2/59 with DCN No. 1 dated 7/31/59 and sheet 2 of 2 Revision B dated 11/2/59; 409001 sheet 1 of 2 dated 7/31/59 with DCN No. 1 dated 8/11/59;

and sheet 2 of 2 dated 7/31/59; and 409002 dated 7/24/59 with DCN No. 1 dated 8/11/59.

Date of Application: June 19, 1959 Date Reissued: December 1, 1999 Date of Issuance: February 09, 1960 Date Amended: May 8, 1967 Revision 3 FEDERAL AVIATION By direction of the Admin Michela MOusta (Signature) Michele M. Owsley, Manager TOMINSTRATO Airplane Certification Office, Southwest Region (Title)

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and 2IP code) from (Name of grantor) (Print or type) - (Address of grantor) (Number and street) (City, State, and ZIP code) Extent of Authority (if licensing agreement): - Date of Transfer:.

Signature of grantor (In ink):

**FAA AC 69-5536**

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA2-821 Date of Issuance: February 09, 1960 Reissuance Date: December l, 1999 Limitations and Conditions: (Continued):

1. The tank is evaluated for approval on Aircraft certificated under CAR 4b but the plumbing installation is evaluated for approval on aircraft certificated under CAR Part 9 only.

2. This modification is eligible on Lockheed Super Ventura Serial No. 4676 and Serial No. 5599 Reg. No. N5034F and Pressurized Super Ventura Serial No. 5497 Reg. N510N only.

- END-

FAA Form 8110-2-1(10-65) Page 3 of 3

## Every issue (1)

- December 1, 1999: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/d0/d4/d0d4df277375e1b13ed7c4ed668fe67bf06a51980ec677be3990647e763782df)

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