# STC SA3832NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sierra Industries, Inc, United States
- Description: Structural floor modification to facilitate an executive interior.
- Applied: July 29, 1985
- Status date: December 1, 1999
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/72/a3/72a32bc2b741348f856c13c8ce698bd8cf0010086670217a87da3a644d665a0e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/33CA547347A0B62385256CC2000C5ADA.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3832NM

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 747SP 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: SA3832NM This certificate issued to: Sierra Industries, Inc., a Texas Corporation Garner Field Road Uvalde, TX 78801 Certifies that the change in the type design for the following product with the limitations and conditions therofor as speoified hereon meets the airworthiness requirement's of Part 25 of the Federal Aviation Regulation (See Type Certificate Data Sheet A20WE for complete Certification Original Product Type Certificate Number: A2 OWE Make: Boeing Model: 747-SP Description of Type Design Change:

structural floor modification to facilitate an executive interior in accordance with FAA approved DEE Howard Company Drawing List 063010, dated April 13, 1987 or later FAA approved revisions.

The approval of this change in type design applies basically to the above model aircraft only. This approval should not be extended to aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate and DEE Howard Company Drawing List 063010 shall be maintained as part of the permanent records for the modified aircraft.

Date of Application: JU1y 29, 1985 Date Reissued: 5/29/87; 12/1/99 Date of Issuance: May 08, 1981 Date Amended:

FEDERAL AVIATION By Direction of the Administrator Michel MOusle (Signature) * Michele M. Owsley, Manager TOMINISTRATO 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 ZIP code ) from (Name of grantor) (Print or type) - (Address of grantor) (Number and streel) (City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink): _

## Every issue (1)

- December 1, 1999: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/72/a3/72a32bc2b741348f856c13c8ce698bd8cf0010086670217a87da3a644d665a0e)

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