# STC SA721NE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Driessen Aircraft Interior Systems USA Inc, United States
- Description: Installation of half size service cart P/N L18885-22 in Aircraft Interior Design closet P/N 09460.
- Applied: October 17, 1989
- Status date: October 4, 2007
- Product: Aircraft, Large Airplane
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE)
- Certificate PDF: https://openairdocs.org/files/sha256/91/c4/91c45d5aecd55390000ade57eb89f6710bded6012ace17680d10bd3eb5519ba6
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3B52CF018F0264E386257A1500506169.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA721NE

## ADs that name it (0)

None.

## Approved models (15)

- The Boeing Company DC-9-11 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-12 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-13 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-14 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-15 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-15F ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-31 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-32 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-32 (VC-9C) ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-32F ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-32F (C-9A) ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-32F (C-9B) ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-33F ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-34 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-34F ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))

## 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.

United States of America Department of Transportation-Federal Aviation Administration Supplemental Type Certificate Number SA721NE

This certificate, issued to Driessen Aircraft Interior Systems USA, Inc.

3340-C Greens Road Suite 300 Houston, TX 77032

Part 25 of the Federal Aviation Regulations.

Original ProductType Certificate Number: A6WE Make: McDonnell Douglas Model: DC-9-10, DC-9-30 Description of the Type Design Change: Installation of Lermer half size service cart P/N L18885-22 in Aircraft Interior Design, Inc. Closet P/N 09460 in accordance with Lermer Midway Airlines DC-9-10 and 30 Installation Drawing L400-169, No Rev., dated October 17, 1989, or later Federal Aviation Administration (FAA) approved revision.

Limitations and Conditions: Cart must be placarded showing a maximum loaded weight not to exceed 110 lbs. An additional placard stating, “The gross weight of this unit or the combined gross weight of this unit and any other galley insert when stowed together must not exceed the placard maximum contents weight of the compartment where stowed.” Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to other aircraft of these models 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 Lermer Drawing L400-169 No Rev., dated October 17, 1989, or later FAA approved revision, must be maintained as part of the permanent records for the modified aircraft.

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date of application: October 17, 1989 Date reissued: 02/01/2001; 03/29/2001; 10/4/2007 Date of issuance: February 22, 1990 Date amended:

(Signature)

Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (1)

- October 4, 2007: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/91/c4/91c45d5aecd55390000ade57eb89f6710bded6012ace17680d10bd3eb5519ba6)

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