# STC SR00181IB

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Aerologic LLC, United States
- Description: Installation of alternate Cabin Door Latches to replace OEM door locks
- Applied: November 15, 2021
- Status date: June 25, 2024
- Product: Aircraft, Rotorcraft
- Certification basis: Part 27
- Foreign approvals: New Zealand 22/21E/5
- Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/55/f2/55f23e1cb345d3b90d6df59021c62f3612b41543727b78d23d4ac691c2465846
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID122480081020250725184948.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR00181IB

## ADs that name it (0)

None.

## Approved models (7)

- MD Helicopters LLC 369D ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters LLC 369E ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters LLC 369F ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters LLC 369FF ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters LLC 369HE ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters LLC 369HS ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters LLC 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.

SR00181IB Aerologic, LLC 1949 Highway 41 South Calhoun, GA 30701 Part 27 Title 14, Code of Federal Regulations H3WE MD Helicopters, LLC (MDHI) 369HS, 369HE, 369D, 369E, 369F, 369FF, 500N

1. This STC is applicable to all serial numbers for these MD Helicopters LLC models 369HS, 369HE, 369D, 369E, 369F, 369FF, and 500N.

2. The aircraft must be maintained in accordance with the airworthiness limitations section of the ICA referenced in the Description section.

(See continuation sheet 3) 11/15/2021 03/01/2025 06/25/2024 Robert P. Capezzuto Acting Manager, East Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 3

1. Installation of alternate Cabin Door Latches to replace OEM door locks in accordance with Master Document List P1681-MDL-R2, revision 2, dated December 19, 2023, maintained in accordance with Instructions for Continued Airworthiness P1681-ICA-R3, revision 3, dated December 19, 2023.

SR00181IB 03/01/2025 SR00181IB 3

SR00181IB 03/01/2025 Limitations and Conditions (continued):

3. The installer must determine whether this design change is compatible with previously approved modifications.

4. If the holder agrees to permit another person to use the certificate to alter the product, the holder shall give the other person written evidence of that permission.

Certification Basis:

The certification basis for this modification is based upon Part 27 as specified in Type Certificate Data Sheet (TCDS) H3WE.

----------END---------- 3 3

## Every issue (2)

- June 25, 2024: Issued, Current. [certificate](https://openairdocs.org/files/sha256/55/f2/55f23e1cb345d3b90d6df59021c62f3612b41543727b78d23d4ac691c2465846)
- June 25, 2024: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/3d/9c/3d9c84dded8bc9d1eaeb1cdae5def5933f583fe9526e874974f214a6f28ac34b)

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