# STC SA2374NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: AIM Aviation Inc, United States
- Description: Installation of a Side Stair Stow Unit.
- Applied: April 18, 1984
- Status date: July 5, 2011
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/e6/ff/e6ffd1f198dcb2c35278ea006f190946fb16a0fc2490fa24a13ccead5d1d0682
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4691FE614A84BA79862579D60078445E.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2374NM

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 747-200 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

## 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.

Number SA2374NM

This certificate, issued to: AIM Aerospace, Inc 705 SW 7th St Renton, WA 98057

Part 25 of the Federal Aviation Regulations. (See Type Certificate Data Sheet A20WE for complete certification basis.)

Original ProductType Certificate Number: A20WE Make: Boeing Model: 747-200

Description of the Type Design Change: Installation of a side stair stow unit in accordance with Federal Aviation Administration (FAA) approved KME Drawing List Number 2120DL, Revision A, dated April 20, 1984, or later FAA-approved revisions.

Limitations and Conditions: 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 model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. The resulting interior arrangement, along with the required placarding, have not been evaluated and are not part of this supplemental type certificate. A copy of this certificate and Drawing List KME 2120DL shall 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: April 18, 1984 Date reissued: 9/7/88; 10/25/88; 7/5/11 Date of issuance: April 30, 1984 Date amended: May 9, 1984

(Signature) Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (1)

- July 5, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/e6/ff/e6ffd1f198dcb2c35278ea006f190946fb16a0fc2490fa24a13ccead5d1d0682)

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