# STC SR02541LA

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Precision Heli-Support, LLC, United States
- Description: Installation of TSO article:  Diamond J, Inc. Turbine Outlet Temperature (TOT) Indicator and related components in place of the MDHI Turbine Outlet Temperature Indicator and related system
- Applied: August 8, 2014
- Status date: January 8, 2018
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 27
- Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/be/60/be605097834a336a6b423654089766e98170998ac3a2b79f38da515a224d765a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FB53DD25D22DE6C086258228004AD3C7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR02541LA

## ADs that name it (0)

None.

## Approved models (1)

- MD Helicopters Inc. 369FF ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))

## 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.

United States Of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate Number SR02541LA

Precision Heli-Support, LLC 4702 E. Fighter Aces Dr., Mesa, Arizona 85215

Part 27 of the Federal Aviation Regulations.

Original Product – Type Certificate Number: H3WE Make: MD Helicopters Inc. (MDHI) Model: 369FF Description of Type Design Change:

Installation of TSO article: Diamond J, Inc. Turbine Outlet Temperature (TOT) Indicator and related components in place of the MDHI Turbine Outlet Temperature Indicator and related system, in accordance with Master Data List PHP-MDL-460, Revision N/C, dated March 11, 2015, or later FAA approved revision.

The installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the rotorcraft. The installer must determine whether this design change is compatible with previously approved modifications. The approval of this modification applies to the above-noted aircraft model series only. If the holder agrees to permit to another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

August 8, 2014 Date reissued: May 11, 2016, January 8, 2018

August 13, 2015 Date amended:

(Signature) Manager, Technical & Administrative Support Section, Los Angeles ACO Branch

(Title)

United States Of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate Number SR02541LA (Continuation Sheet)

United States Of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate Number SR02541LA (Continuation Sheet)

Revision Control:

Page No. 1 2 Rev. No. - -

Description of Design Changes – continued:

The following Phoenix Heliparts, Inc. continued airworthiness supplement is applicable to the 369FF aircraft modified in accordance with this STC:

Phoenix Heliparts, Inc. Instructions for Continued Airworthiness, Document No.

PHP-ICA-460 Rev N/C, dated March 11, 2015.

The following Phoenix Heliparts, Inc. FAA Approved Rotorcraft Flight Manual Supplement is applicable to the 369FF aircraft modified in accordance with this STC:

Phoenix Heliparts, Inc. FAA Approved Rotorcraft Flight Manual Supplement, Document No. PHP-FMS-460 Rev N/C, dated August 11, 2015.

Certification Basis:

Regulations at the latest amendment 27-0 through 27-46 for those parts changed or affected by the change:

§§ 27.25(a)(b), 27.305(a), 27.307(a), 27.601(a), 27.603(a)(b)(c), 27.605(a), 27.607(a), 27.609(a),

27.613(c)(d), 27.901(b)(1)(2)(5)(c)(1)(2), 27.1301(a)(b)(c)(d), 27.1305(n), 27.1309(a)(c),

27.1321(a), 27.1351(a)(1), 27.1357(a)(2), 27.1365(a), 27.1529, 27.1541(a)(1), 27.1543(b),

27.1549(a)(b)(c), 27.1581(a)(1)(2)(b)(d), 27.1583(a)(b)(1)(2)(3), 27.1585(a).

-END-

## Every issue (3)

- January 8, 2018: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/be/60/be605097834a336a6b423654089766e98170998ac3a2b79f38da515a224d765a)
- May 11, 2016: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/28/39/2839f173557d534323fe23c9dbe34c7f6aa4d77dbaa87dfadee1c09da95f0b88)
- August 13, 2015: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/ac/a2/aca2deb9380527df0fda28d67540ca69ad6db87b322d417cc627182cc2b32b67)

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