# STC ST04764NY

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Mid-Continent Instrument Co., Inc., United States
- Description: True Blue Power TS56 Emergency Battery Power Supply Replacement
- Applied: May 13, 2026
- Status date: July 9, 2026
- Product: Aircraft, Large Airplane
- Certification basis: Part 25
- Data sheets: [TCDS TC00062IB](https://openairdocs.org/tcds/TC00062IB)
- Certificate PDF: https://openairdocs.org/files/sha256/c7/5f/c75facb5979afe985a6c56f2f6a78f429d4a5f7e0cf0ff6eb906bf0214a247db
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID177494069120260717135733.0001
- DRS record last changed: July 17, 2026
- Page: https://openairdocs.org/stc/ST04764NY

## ADs that name it (0)

None.

## Approved models (2)

- Embraer S.A. EMB-545 ([TCDS TC00062IB](https://openairdocs.org/tcds/TC00062IB))
- Embraer S.A. EMB-550 ([TCDS TC00062IB](https://openairdocs.org/tcds/TC00062IB))

## 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.

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9400 E. 34th Street N.

Wichita, KS 67226 25 Title 14 Code of Federal Regulations TC00062IB EMBRAER S.A.

EMB-545 and EMB-550 True Blue Power TS56 Emergency Battery Power Supply Replacement in accordance with (1) Master Data List (MDL) E550-MDL-0238, Rev IR, dated July 7, 2026, or later FAA approved revision. (2) Instructions for Continued Airworthiness (ICA) E550-ICA-0238, Rev IR, dated May 21, 2026, or later FAA accepted revision, shall be made available to the operator at the time of installation and be incorporated into the operator’s maintenance program.

(1) The installer must determine whether this design change is compatible with previously approved modifications.

(2) If the holder agrees to permit another person to use the certificate to alter the product, the holder must give the other person written evidence of that permission.

(3) This STC is applicable to all serial numbers for the Make: EMBRAER S.A. Models EMB-545 and EMB-550 aircraft.

5/13/26 7/9/26 ODA administrator, ODA-834634-NE 3

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number  (IIHFWLYH'DWH I Transferr Endorsementt Transfer the ownership of Supplemental Type Certificate Number:

Too (Name and address of transferee):

Date oI transfer:

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(Continuation Sheet) Number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ertification Basis:

Based on 14 CFR § 21.115 and § 21.101, and the FAA policy for design changes that are identified as not significant in FAA Order 8110.48, the certification basis for EMBRAER S.A., Models EMB-545 and EMB-550 Series, is as follows:

(1) The type certification basis for parts not changed or not affected by the change is shown on TCDS TC00062IB.

(2) The modification certification basis for parts changed or affected by the change since the reference application date, May 13, 2026, is based upon 14 CFR part 25 (effective date 01Feb1965) as amended by Amendments 25-1 through 25-129.

--- END --- 33 07/09/26

## Every issue (1)

- July 9, 2026: Issued, Current. [certificate](https://openairdocs.org/files/sha256/c7/5f/c75facb5979afe985a6c56f2f6a78f429d4a5f7e0cf0ff6eb906bf0214a247db)

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