# STC ST09881SC

- Type: Supplemental type certificate
- Status: Current, Surrendered
- Holder: Ozark Aircraft Systems, United States
- Description: Installation of a Multizone Environmental Control System. 737-700 IGW model.
- Applied: January 12, 2000
- Status date: December 1, 2009
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE)
- Certificate PDF: https://openairdocs.org/files/sha256/98/a9/98a9a0002fea2a11a669437633836a758782069627302a9d2e3493045f09a3bb
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/94153C816548BB70862576DC00737AEC.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST09881SC

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 737-700 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))

## 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 Added Notes at Surrender:

Number: ST098815C Future unsafe conditions existing in the product can result in an airworthiness directive requiring cerrection of the unsafe This certificate issued to: Cotney Aerospace Inc. condition before further flight. If there is no entity to comply with 14 QFR 21.99(a).

6280 Helena Road Kequired design changes, the existence of Helena, AL 35080 an unsafe condition might result in permanently grounding of the aircraft.

2. Replacement parts might not be available in the futare.

Purt. 25 of Federar Aviation Regulations.

Original Product Type Certificate Number : A16WE STC Surrender processed:

Make: Boeing Approval by: ana for Melvin Taylor, ATL ACO Manager Model: 731 Make: 12/1/09 Description of Type Design Change:

Installation of a Multizone Enviro Master Drawing List Document upbe or later FAA approved revision.

Document Number 90102-ER710 Revisi revision is required.

Control System in accordance with OAS 0102-DI003, Revision U, dated May 22, 2001, roved Airplane Fiight Manual Supplement dated June 3, 2001, or later FAA Limitations and Co Compatibility hange with previously approved modifications must se determined b If the holder agrees to permit another person to use this evidence of that permission.

person written

Date y application: January 12, 2000 Date Reissued: Apri1 30; 2004 Date of Issuance: June 03, 2001 Date Amended:

AVIATI • By tredion yof the Administrator (Signature) rances cox, Manager ADMINIS Special Certification Office, Southwest Region (Title)

## Every issue (1)

- December 1, 2009: Surrendered, Current. [certificate](https://openairdocs.org/files/sha256/98/a9/98a9a0002fea2a11a669437633836a758782069627302a9d2e3493045f09a3bb)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.