# STC SH3188NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Croman Corporation, United States
- Description: Pilot-in-Command position to be in either left or right seat with fully redundant controls and control-mounted switches
- Applied: January 14, 1985
- Status date: September 16, 1985
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H2EA](https://openairdocs.org/tcds/H2EA)
- Certificate PDF: https://openairdocs.org/files/sha256/bd/e7/bde7e98c1ed7681b1266adaa187486cb80bc79b18bcdcaf5d27fb804646a9858
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BF1E57130470FDAB86257A2C006C7ADD.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH3188NM

## ADs that name it (0)

None.

## Approved models (1)

- Sikorsky Aircraft Corporation S-61A ([TCDS H2EA](https://openairdocs.org/tcds/H2EA))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SH 3188NM This certificate issued to: Croman Corporation Purt 6 f the Civil Air Hagulations:

Original Product -Type Fertificate Vumber H2 EA Make Sikorsky Model: S-61A Description of Type Design Change:

Pilot-in-Command position to be in either left or right seat with fully redundant controls and control-mounted switches.

Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to Pilot-in-Command operation from the left or right seat on Sikorsky Model S-61A Rotorcraft, Serial Number 61094 only. The modified rotorcraft must be operated in accordance with an FAA approved copy of the Rotorcraft Flight Manual Supplement dated September 16, 1985, or later FAA Approved Revision. A copy of this Certificate and the Rotorcraft Flight Manual Supplement must be carried in the rotorcraft at all times.

Daleef appleution: January 14, 1985 Date Reissued:

I ate of coenance September 16, 1985 Date Amended:

FEDERAL AVIATION By Direction of the Administrator ¡ Signature TOMINIST RAN DE Acting Manager, Seattle Aircraft Certification Office (Title) 47 FAA FORM 8110-2 (10-68)

## Every issue (1)

- September 16, 1985: Issued, Current. [certificate](https://openairdocs.org/files/sha256/bd/e7/bde7e98c1ed7681b1266adaa187486cb80bc79b18bcdcaf5d27fb804646a9858)

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