# STC SR01215CH

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Apollo Spray Systems, United States
- Description: Install Apollo Spray System DTM-4.
- Applied: August 25, 2008
- Status date: August 25, 2008
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 27
- Data sheets: [TCDS H11NM](https://openairdocs.org/tcds/H11NM)
- Certificate PDF: https://openairdocs.org/files/sha256/de/95/de95f91c471647aae10e2152b89945e20a7b0992eb5aa13a156ff567bb4c0103
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5A64306C1612AAAF862574DD0070CC10.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR01215CH

## ADs that name it (0)

None.

## Approved models (2)

- Robinson Helicopter Company R44 ([TCDS H11NM](https://openairdocs.org/tcds/H11NM))
- Robinson Helicopter Company R44 II ([TCDS H11NM](https://openairdocs.org/tcds/H11NM))

## 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. (See Type Certificate Data Sheet No. H11NM for complete certification basis)

Install Apollo Spray System DTM-4 in accordance with Apollo Spray System Drawing List DTM-4MDL, No Rev., dated December 8, 1999, or later FAA-Approved Revision; and Installation Instructions DTM-4-II, Rev. B dated May 26, 2008, or later FAA approved revisions.

1. The installer must determine whethe r this design change is compatible with previously approved modifications.

2. Apollo Spray Systems Rotorcraft Flight Manual Supplement, FAA-Approved June 17, 2008, or later FAA-Approved revision is required.

3. If the holder agrees to permit another pe rson to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

Apollo Spray Systems 15369 Madison Road Middlefield, OH 44062 H11NM Make : Robinson Helicopter Company Model : R 44 and R-44 II

Date of application : June 3, 1999

Date of issuance : June 15, 2000

Date amended : August 25, 2008

Original signed by:

Manzoor Javed for ( Signature) Mary Ellen Schutt Manager, Airframe And Administrative Branch Chicago Aircraft Certification Office

( Title)

FAA FORM 8110-2-1(10-69) PAGE 2 of 2 PAGES

Number

## Every issue (1)

- August 25, 2008: Amended, Current. [certificate](https://openairdocs.org/files/sha256/de/95/de95f91c471647aae10e2152b89945e20a7b0992eb5aa13a156ff567bb4c0103)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.