# STC SR02536LA - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Precision Heli-Support, LLC, United States - Description: Installation of TSO articles: Instrument Specialties Company, Inc. Oil Pressure Indicator, Pressure Transducer, and related components in place of the MDHI Oil Pressure Indicator and related system - Applied: September 20, 2013 - 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/sha256/60/23/60230d47765462446cd831b48441bea5b4b544487f01e8e5478a2ff8402b3af7 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F46837FDA37B64A886258228004AD3AE.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SR02536LA ## ADs that name it (0) None. ## Approved models (8) - MD Helicopters Inc. 369D ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopters Inc. 369E ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopters Inc. 369F ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopters Inc. 369FF ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopters Inc. 369HE ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopters Inc. 369HM ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopters Inc. 369HS ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopters Inc. 500N ([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 SR02536LA 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: 369HE, 369HS, 369HM, 369D, 369E, 369F, 369FF, 500N Description of Type Design Change: Installation of TSO articles: Instrument Specialties Company, Inc. Oil Pressure Indicator, Pressure Transducer, and related components in place of the MDHI Oil Pressure Indicator and related system, in accordance with Master Data List PHP-MDL-354, Revision C, dated March 13, 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 con figuration 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. September 20, 2013 May 11, 2016, January 8, 2018 Date of issuance: June 5, 2015 Date amended: (Signature) Manager, Technical & Administrative Support Section, Los Angeles ACO Branch (Title) Transfer the ownership of the Supplemental Type Certificate Number to (Name of transferee) (Address of transfer) (Number and street) (City, State, and Zip code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and Zip code) Extent of Authority (if licensing agreement): Signature of grantor (In ink): 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 369HE, 369HS, 369HM, 369D, 369E, 369F, 369FF, 500N aircraft modified in accordance with this STC: Phoenix Heliparts, Inc. Instructions for Continued Airworthiness, Document No. PHP-ICA-354 Rev D, dated March 13, 2015. No change to the MDHI Rotorcraft Flight Manual(s). Certification Basis: Regulations at the latest amendment 27-0 through 27-46 for those parts changed or affected by the change: §§ 27.301(a), 27.303, 27.305(a), 27.307(a), 27.561(a)(b)(3)(c), 27.601(a), 27.603(a)(b)(c), 27.605(a), 27.607(a), 27.609(a), 27.613(c)(d)(1)(2)(3)(4), 27.853(a), 27.861, 27.863(a)(b)(5), 27.901(a)(3)(b)(1)(2)(3)(4)(5)(c)(1), 27.1017(a)(b)(c)(d), 27.1183(a), 27.1301(a)(b)(c)(d), 27.1305, 27.1309(a)(c), 27.1321(a)(c)(d), 27.1327(a)(1), 27.1337(a)(2)(i)(ii), 27.1351(a)(1)(b)(i)(2)(3), 27.1357(a)(2)(b)(c)(1)(2)(d), 27.1365(a)(b)(c), 27.1435(b), 27.1529, 27.1543(b), 27.1549(a)(b) 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. -END- ## Every issue (3) - January 8, 2018: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/60/23/60230d47765462446cd831b48441bea5b4b544487f01e8e5478a2ff8402b3af7) - May 11, 2016: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/cd/5e/cd5e92b7fee3d6dbfc24a5cf03fd75a285a317ac0d0d981333dc639b86666fbd) - June 5, 2015: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/eb/75/eb757ba3fb0c4109f59bdbeb3285b22c3b1acdc48e5d51207fce8eee4db8e69e) --- 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.