# STC SH5539NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: AeroControlex Group Inc, United States
- Description: Installation of closed circuit refueling receiver P/N 750000-17. (412 S/N 33108 AND SUBSEQUENT)
- Applied: June 28, 1991
- Status date: March 19, 2010
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H4SW](https://openairdocs.org/tcds/H4SW)
- Certificate PDF: https://openairdocs.org/files/sha256/9d/ee/9dee65e25eb1b32cdfe9e337fc0628674a62cdd92461f1d035d0df3f2c9bb678
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CEC349587CEF8B4B862576F60060B5AC.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH5539NM

## ADs that name it (0)

None.

## Approved models (3)

- Bell Helicopter Textron 412 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW))
- Bell Helicopter Textron 412CF ([TCDS H4SW](https://openairdocs.org/tcds/H4SW))
- Bell Helicopter Textron 412EP ([TCDS H4SW](https://openairdocs.org/tcds/H4SW))

## 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: SH5539NM This certificate issued to: AEROCONTROLEX GROUP, INC.

313 Gillett Street Painesville, Ohio 44077 Part 29 of the Federal Aviation Regulations. ..

Original Product Type Certificate Number: HASW Make: Bell Model:

412 serial numbers 33108 and Sub.), 412CF, 412EP Description of Type Design Change: Installation of a Closed Circuit Refueling Receiver, P/N 750000-17, in accordance with Drawing List 750097-17, Revision D dated November 8, 1994, or later FAA approved revision.

Limitations and Conditions: Approval of this change in type design applies to the above rotorcratt models only. This approval should not be extended to rotorcraft of these models that incorporate any other previously approved modification unless it is determined that the interrelationship between this change and any other modification will introduce no adverse effect on the airworthiness of these rotorcraft. A copy of this STC must be included in the permanent records of each rotorcraft modified in accordance with this STC. 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.

The FAA will reissue the certificate in the name of the transferee and forward it to him.

TRANSFER ENDORSEMENT 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):

## Every issue (1)

- March 19, 2010: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/9d/ee/9dee65e25eb1b32cdfe9e337fc0628674a62cdd92461f1d035d0df3f2c9bb678)

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