# STC ST00053SE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: LMI Aerospace, United States
- Description: Installation of flap transmission housings and retainers modified
- Applied: October 12, 1993
- Status date: July 5, 2018
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/3d/59/3d598ae4a820af9d71d47f0033fac0396bd2f14754757435656e92eb993c69ea
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0DF92A89F397A4B8862582CC0061FA8B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST00053SE

## ADs that name it (0)

None.

## Approved models (3)

- The Boeing Company 727-100 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))
- The Boeing Company 727-100C Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))
- The Boeing Company 727-200 Series ([TCDS A3WE](https://openairdocs.org/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.

Un ited S tates of Am erica Department of Transportation - Federal Aviation Administration Supplemental Type Certificate

Number ST00053SE

This certificate, issued to LMI Aerospace 1910 Merrill Creek Parkway Everett, WA 98203

Part 25 of the Federal Aviation Regulations.

Original ProductType Certificate Number: A3WE Make: Boeing Model: 727-100, 727-100C 727-200, 727-200C

Description of the Type Design Change: Installation of flap transmission housings and retainers modified in accordance with Transport Repair and Maintenance Company Master Drawing List 93-072, Revision A, dated January 11, 1993.

Limitations and Conditions: Approval of this change in type design applies to the above models of aircraft only, and shall not be extended to other models of this airplane on which other previously approved modifications have been incorporated, unless it can be determined that the interrelationship between this change and any of those previously approved modifications will introduce no adverse effects upon the airw orthiness of that airplane.

A copy of this Certificate shall be maintained as part of the permanent records for the modified aircraft.

Date of application: October 12, 1993 Date reissued: July 5, 2018 Date of issuance: January 10, 1994 Date amended:

(Signature)

Manager, Seattle ACO Branch (Title)

Un ited S tates of Am erica Department of Transportation - Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet)

Number SX#####XX

Company Name Here Issued: Date Reissued: Date Amended: Date

Description of the Type Design Change continued:

A copy of this certificate, and the RFMS, must be maintained as part of the permanent records of the modified rotorcraft.

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.

Certification Basis:

Insert Cert Basis Here

(See Page X of X Pages)

- END -

**FAA FORM 8110-2-1 (10-69) PAGE X OF X PAGES**

## Every issue (2)

- July 5, 2018: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/3d/59/3d598ae4a820af9d71d47f0033fac0396bd2f14754757435656e92eb993c69ea)
- January 10, 1994: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/e8/59/e859e66f81898c4d7bbadd6eea7f80deada3664a14650dc1529ca2fbb0538c7c)

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