# STC SR00557SE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Onboard Systems International, United States
- Description: Fabrication of Onboard Systems Model 200-225-00 (without load weight) or 200-226-00 (with load weight) cargo hook suspension system
- Applied: May 28, 1998
- Status date: October 7, 2021
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 27
- Data sheets: [TCDS H10WE](https://openairdocs.org/tcds/H10WE)
- Certificate PDF: https://openairdocs.org/files/sha256/f3/f0/f3f0fc10eaf61b2f8b893dd1295fd1585422903c97907d896ca692d0aa5f8f54
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CFFF52F98FBA000F86258801005A57BE.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SR00557SE

## ADs that name it (0)

None.

## Approved models (4)

- Robinson Helicopter Company R22 ([TCDS H10WE](https://openairdocs.org/tcds/H10WE))
- Robinson Helicopter Company R22 ALPHA ([TCDS H10WE](https://openairdocs.org/tcds/H10WE))
- Robinson Helicopter Company R22 BETA ([TCDS H10WE](https://openairdocs.org/tcds/H10WE))
- Robinson Helicopter Company R22 MARINER ([TCDS H10WE](https://openairdocs.org/tcds/H10WE))

## 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.

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 1 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

SR00557SE Onboard Systems International, LLC 13915 NW 3rd Court Vancouver, WA 98685 Part 27 the Federal Aviation Regulations H10WE Robinson R22, R22 ALPHA, R22 BETA, and R22

MARINER Fabrication of Onboard Systems Model 200-225-00 (without load weight) or 200-226-00 (with load weight) cargo hook suspension system in accordance with Federal Aviation Administration (FAA) approved Onboard Systems Master Drawing List 155-036-00, dated June 12, 1998, or later FAA-approved revision.

Installation of these cargo hook systems in accordance with Onboard Systems Owner’s Manual No. 120-070-00, dated May 10, 1998, or later FAA-approved revision. Inspect these cargo hook systems in accordance with Section 5 of Onboard Systems Owner’s Manual No. 120-070-00, dated May 10, 1998, or later FAA-approved revision.

Approval of this change in type design applies to only those Robinson model rotorcraft listed above. This approval should not be extended to helicopters of these models on which other previously approved modifications are incorporated unless it is determined by the installer that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that helicopter. Modified rotorcraft must be operated in accordance with a copy of Onboard Rotorcraft Flight Manual Supplement (RFMS) No. 121-022-00, dated September 29, 2005, or later FAA-approved revision. A copy of this certificate and FAA-approved RFMS must be maintained as part of the permanent records of the modified helicopter.

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.

May 28, 1998 October 7, 2021 April 17, 2013 For Acting Manager, Seattle ACO Branch 2 August 20, 1998

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

SR00557SE 2

## Every issue (3)

- October 7, 2021: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/f3/f0/f3f0fc10eaf61b2f8b893dd1295fd1585422903c97907d896ca692d0aa5f8f54)
- April 17, 2013: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/7c/f2/7cf2a4d5de234816859680fc261d4ef30b7cdfa8f0fa914a46ad44cce826fee6)
- August 20, 1998: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/be/f8/bef8d5dd2c727b491e989e4047d69904e5fa895332e0cfa89eb7909f5cc750fb)

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