# STC SH3328NM

- 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: September 13, 1985
- Status date: February 21, 1986
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS 1H15](https://openairdocs.org/tcds/1H15)
- Certificate PDF: https://openairdocs.org/files/sha256/8f/76/8f7678586309d2e4940b12219b70163c4e03abf09ad3fe917a51aebc99786573
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/51E0A7697DE325C2862579FE006AE8D0.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SH3328NM

## ADs that name it (0)

None.

## Approved models (1)

- Sikorsky Aircraft Corporation S-61L ([TCDS 1H15](https://openairdocs.org/tcds/1H15))

## What the certificate says

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

Snitco States of Searice Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SH3328NM This certificate issued to: Croman Corporation Purt 6 of the Civil Air Regulations.

Original Product - Type Gertificate Number: H2EA Make: Sikorsky Model: S-61L 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.

Limitations and Conditions: Data pertaining to this modification are considered inadequate for duplication in other aircraft. Pilot-in-Command operation from the left or right seat on Sikorsky Model S-61L This approval is limited to Rotorcraft, Serial Number 61453 only. The modified rotorcraft must be operated in accordance with a FAA approved copy of the Rotorcraft Flight Manual Supplement dated February 21, 1986, or later FAA approved revision. A copy of this Certificate and the Rotorcraft Flight Manual Supplement must be carried in the rotorcraft at

Date of Application: . September 13, 1985 Date Reissued:

Date of Issuance: February 21, 1986 Date Amended:

FEDERAL AVIATION By Direction of the Administrator TOMINIST RAND Acting Manager, Certification Office Senseattle Aircraft (Title)

## Every issue (1)

- February 21, 1986: Issued, Current. [certificate](https://openairdocs.org/files/sha256/8f/76/8f7678586309d2e4940b12219b70163c4e03abf09ad3fe917a51aebc99786573)

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