# STC SA00139MC

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Amentum Services Inc., United States
- Description: Installation of (modified) Special Mission Equipment including Surveillance and Mission Radio Systems
- Applied: February 20, 2015
- Status date: December 3, 2022
- Product: Aircraft, Small Airplane
- Certification basis: Part 23
- Data sheets: [TCDS A18SW](https://openairdocs.org/tcds/A18SW)
- Certificate PDF: https://openairdocs.org/files/sha256/a4/12/a4121dce9f577a1901065dcd4eb22e6a999f710bbdcfc48615e569a0720c1229
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127559480820250728135116.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00139MC

## ADs that name it (0)

None.

## Approved models (1)

- M7 Aerospace LLC SA227-DC (C-26B) ([TCDS A18SW](https://openairdocs.org/tcds/A18SW))

## 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.

SA00139MC Amentum Services, Inc.

20501 Seneca Meadows Parkway, Ste. 300 Germantown, MD 20876 Part 23 the Federal Aviation Regulations A18SW M7 Aerospace SA227-DC (C-26B) Installation of (modified) Special Mission Equipment including Surveillance and Mission Radio System in accordance with Borsight Master Drawing List, R26A-R7060, Revision B, dated 15 November 2016, or later FAA approved revision.

(See Continuation Sheet 3 of 3) February 20, 2015 December 3, 2022 November 18, 2016 S. Frances Cox Acting Manager, Fort Worth ACO Branch, Compliance & Airworthiness Division Aircraft Certification Service 3

SA00139MC 3

SA00139MC Date of Issuance: November 18, 2016 Date of Reissuance: December 3, 2022

1) This STC requires the aircraft comply with Instructions for Continued Airworthiness, R26A-R7070, Revision A, dated 16 November 2016, or later FAA accepted revision.

2) The following STC's are all prerequisites for this installation: SA8838SW, SA00024MC, SA00051MC.

3) The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

4) This STC is intended for military, public, or government use aircraft ONLY.

Installation of this system on aircraft for civil use is prohibited.

NOTE: The modification has been substantiated to be no acoustic change per CFR §21.93(b).

-END- 3 3

## Every issue (2)

- December 3, 2022: Issued, Current. [certificate](https://openairdocs.org/files/sha256/a4/12/a4121dce9f577a1901065dcd4eb22e6a999f710bbdcfc48615e569a0720c1229)
- November 18, 2016: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/f1/b2/f1b235ad021b7b9d3f3ca41e5c4d38f55b4dfe4a6015c90ce4f0b4054f61951e)

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