# STC SA3323NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sierra Industries, Inc, United States
- Description: Structural floor modification to facilitate an executive interior.
- Applied: July 12, 1983
- Status date: May 24, 2002
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/ec/cd/eccd1c804ce8d0b7b2330bbb3c75b55bd0c391fd3c539d341132fedb049c33ce
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A787CFAD5419B74185256CC2000A96DE.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3323NM

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 747-300 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

## 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: SA3323NM This certificate issued to: Sierra Industries, Inc. " a Texas Corporation Garner Field Road Uvalde, TX 78801 Part 25 of the Federal Aviation Pegulalion (See Type Certificate Data Sheet A20WE for complete Certification Basis.)

Original Product Type Certificate Number: AZOWE Make: Boeing Model: 747-300 Description of Type Design Change:

Structural floor modification to facilitate an executive interior in accordance with FAA approved Dee Howard Company Drawing List 61-001, dated January 7, 1986 or later FAA-approved revisions.

Date of Application: July 12, 1983 Date Reissued: 6/10/86; 5/24/02 Date of Issuance: February 06, 1986 Date Amended:

FEDERAL AVIATION By Direction of the Administrator Michele MOusten (Signature) Michele M. Owsley, Manager TOMINSTRATO Airplane Certification Office, Southwest Region (Title)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA3323NM Date of Issuance: February 06, 1986 Reissuance Date: May 24, 2002 Limitations and Conditions: (Continued):

The approval of this change in type design applies basically to the above model aircraft only. This approval should not be extended to other aircraft of this mode. on which other previously approved modifications are incorporated unless it is determined that the interrelationships between this change and any other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate and FAA approved Dee Howard Company Drawing List 61-001 shall be maintained as part of the permanent records of the modified aircraft.

-END-

FAA Form 8110-2-1 (10-69) Page 3 of 3

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and stree) (Ciry, Stake, and RIP code ) from (Name of grantor) (Print or type) (Address of grantor) (l'umber and sireel;

(City, Stake, and ZIP code) Extent of Authority (if licensing agreement):

Date of Transter:_ Signature of grantor (In ink): - + 11= r. 0 0. 1090-462.080

## Every issue (1)

- May 24, 2002: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/ec/cd/eccd1c804ce8d0b7b2330bbb3c75b55bd0c391fd3c539d341132fedb049c33ce)

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