# STC SA2499SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sierra Industries, Inc
- Description: Installation of Dual Collins INS-61B Inertial Navigation System with DME Update on No. 1 INS and Manual Update on No 2 INS
- Status date: December 1, 1999
- Data sheets: A3WE
- Certificate PDF: https://openairdocs.org/files/sha256/ad/0f/ad0f1abf2d8ad06cd3decf7162f2729ffcd57f609940b09abc4f95d1bbde64db
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F14B95136FA6C34F85256CC200015F02.0001
- Page: https://openairdocs.org/stc/SA2499SW

## ADs that name it

None.

## Approved models (1)

- The Boeing Company 727-100 Series (TCDS A3WE)

## 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.

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- ,3feberal ,Afaiattan (H^ritftcate Sierra Industries, Inc., a Texas Corporation Garner Field Road Uvalde, TX 78801 A3WE Boeing 727-100 Me 4b Civil Air Installation of Dual Collins INS-61B Inertial Navigation System with DME Update on No. 1 INS and Manual Update on No. 2 INS according to Drawing List 35-3 dated 8/5/77, or later FAA approved revision.

-Gisrti/aMrvu afuJ £vvu?&&vu,- FAA Approved Airplane Flight Manual Supplement dated August 25, 1977, is required.

Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation made in Boeing Model 727-100, Serial No. 18366, only.

.-March 29, 1977 August 25, 1977 (.- December 1, 1999 Michele M. Owsley, Manager Airplane Certification Office, Southwest Region (Title) jC* ij punishable by a fine of not exceerfln? $I,QOQ. or l^nprljonjpenC not extvedirt? 3 years, or both.Any alteration of this This certificate aay be transferred in accordance ultft FAS 21.17,FA* Form 8110-2(10-681 Page 1 of 2

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 S street) (City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In

## Every issue (1)

- December 1, 1999: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/ad/0f/ad0f1abf2d8ad06cd3decf7162f2729ffcd57f609940b09abc4f95d1bbde64db)

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From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.