# STC ST00050SE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: LMI Aerospace, United States
- Description: Installation of Mark V ground proximity and windshear warning system.
- Applied: December 1, 1993
- Status date: July 5, 2018
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A2NM](https://openairdocs.org/tcds/A2NM)
- Certificate PDF: https://openairdocs.org/files/sha256/e9/fe/e9fea00459f449401aa58fb4adcdc1e6436239da66f65fe85987a4df3b939bc7
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/273D2FF2A96FD8C9862582CC0061FA6F.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST00050SE

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 757-200 ([TCDS A2NM](https://openairdocs.org/tcds/A2NM))

## 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 ST00050SE

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

Part 25 of the Federal Air Regulations.

Original ProductType Certificate Number: A2NM Make: Boeing Model: 757-200

Description of the Type Design Change: Installation of the Mark V Ground Proximity and Windshear Warning System per TRAMCO Drawing No. 93-079 Revision B, dated December 15, 1993, or later FAA Approved Revision.

Limitations and Conditions: Approval of this change in type design applies 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 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 the aircraft. A copy of this Certificate 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: December 1, 1993 Date reissued: July 5, 2018 Date of issuance: December 29, 1993 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 (1)

- July 5, 2018: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/e9/fe/e9fea00459f449401aa58fb4adcdc1e6436239da66f65fe85987a4df3b939bc7)

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