# STC SR00232BO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Pratt & Whitney Engine Services Inc., United States
- Description: Installation of Pratt & Whitney Engine Services, Inc. Data Transmission Unit (DTU).
- Applied: January 30, 2006
- Status date: October 22, 2007
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 27
- Data sheets: [TCDS H7EU](https://openairdocs.org/tcds/H7EU)
- Certificate PDF: https://openairdocs.org/files/sha256/14/3d/143d0604d989ff7dfbd9e65846074d017d61615877db9cad2b1b079816474531
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/43D1D97CE67768DD8625738E0058519F.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SR00232BO

## ADs that name it (0)

None.

## Approved models (2)

- Agusta S.p.A. A109E ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))
- Agusta S.p.A. A119 ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))

## 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.

249 Vanderbilt Ave.

Norwood, MA 02062

Part 27 of the Federal Aviation Regulations.

Original Product Type Certificate Number : See attached FAA Approved Model List (AML), Document No. DTU-T-225- 5, Revision -, dated March 27, 2006, or later FAA-approved revision for the list of approved rotorcraft models and applicable airworthiness regulations.

Installation of Pratt & Whitney Engine Services, Inc. Data Transmission Unit (DTU) in accordance with instructions listed in attached AML DTU-T-225-5, Revision -, dated March 27, 2006, or later FAA-approved revision.

1. Instructions for Continued Airworthiness (ICA) as listed in AML DTU-T-225-5, Revision -, dated March 27, 2006, or later FAA-approved revision, shall be made available to the operator at the time of installation.

2. Compatibility of this design change with previously approved modifications must be determined by the installer.

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 : January 30, 2006

Date of issuance : March 27, 2006 Date reissued : October 22, 2007

( Signature) Robert G. Mann Manager, Boston Aircraft Certification Office

( Title)

## Every issue (2)

- October 22, 2007: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/14/3d/143d0604d989ff7dfbd9e65846074d017d61615877db9cad2b1b079816474531)
- March 27, 2006: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/a2/14/a214e99f86fb714c4a1a6e4b492b22a2ba5da1c795abc5403fd714ee16e9cf3d)

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