# STC SR03895AT

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Concorde Battery Corporation, United States
- Description: Installation of a Lead Acid Battery as a replacement for the existing Nickel-Cadmium Battery.
- Applied: April 8, 2010
- Status date: November 23, 2010
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 27
- Data sheets: [TCDS H19NM](https://openairdocs.org/tcds/H19NM)
- Certificate PDF: https://openairdocs.org/files/sha256/80/e9/80e9407b4949ac0dd0b02fba680926e5b659513716e576b5c1c27531d7f535e0
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C35BAAA72C973D5A86257808004F5374.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SR03895AT

## ADs that name it (0)

None.

## Approved models (1)

- MD Helicopter Inc. MD900 ([TCDS H19NM](https://openairdocs.org/tcds/H19NM))

## 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.

Part 27 of the Federal Aviation Regulations.

Description of Type Design Change: Installation of a Lead Acid Battery as a replacement for the existing Nickel-Cadmium Battery in accordance with Concord Master Drawing List (MDL) 5-0329, Rev. A, Dated September 20, 2010 or later FAA approved revision.

Limitations and Conditions: FAA Approved Flight Manual Supplement (AFMS) for the MD Helicopters Model MD900, Doc. No. 5-0330, dated November 23, 2010, is a part of this STC. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated, unless it is determine by the installer that the interrelationship between this change and any other previously approved modifications will produce no adverse effect upon the airworthiness of that airplane. 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.

Concord Battery Corporation 105 Fox Lake Court Winston-Salem, NC 27106 H19NM Make : MD Helicopters, Inc.

MD900 Model:

Date of application : April 08, 2010

Date of issuance : November 23, 2010

( Signature)

Melvin D. Taylor Manager Atlanta Aircraft Certification Office

(Title)

## Every issue (1)

- November 23, 2010: Issued, Current. [certificate](https://openairdocs.org/files/sha256/80/e9/80e9407b4949ac0dd0b02fba680926e5b659513716e576b5c1c27531d7f535e0)

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