# STC SH463NW

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Measurement Systems Intl, United States
- Description: Installation of an electronic weighing system (for monitoring cargo weight)
- Applied: April 22, 1977
- Status date: October 2, 1987
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H4SW](https://openairdocs.org/tcds/H4SW)
- Certificate PDF: https://openairdocs.org/files/sha256/d1/a4/d1a4abe81b3d9ac001e5a61aec348dcc6d18ad4e5c3e2fed5a72960d36af3b1d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/54037CEF0051452985256CC2005C325F.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SH463NW

## ADs that name it (0)

None.

## Approved models (2)

- Bell Helicopter Textron Inc. 212 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW))
- Bell Helicopter Textron Inc. 412 ([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: SH463NW This certificate issued to: Measurement Systems International, Inc.

Part 29 of the Federa1 Aviation Regulations: February 1, 1965• Original Product -Type bortificate Number: H4SW Make: Bell Model: 212 and 412 Description of Type Design Change: . Installation of an electronic weighing system (for monitoring cargo weight) ir accordance withh Measurement Systems International Installation Drawings D00416 or D00469 .

NOTE: No change to FAA approved Rotorcraft Flight Manual Supplement.

Limitations and Conditions: Approval of this change in type design applies basically to the above model aircraft only. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship 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 aircraft. A copy of this Certificate shall be maintained as part of the permanent records for the modified aircraft.

Date of Application: Apri1 22, 1977 Date of Issuance: June 10, 1911

FEDERAL AVIATION Date Reissued:

Date Amended: August 31, 1977; August 19,1980 October 2, 1987 By Direction of the Administrator

0. 7. Kuzg TAMINISTRANO Assistant Manager, Seattle Aircraft Certification Office (Title)

## Every issue (1)

- October 2, 1987: Amended, Current. [certificate](https://openairdocs.org/files/sha256/d1/a4/d1a4abe81b3d9ac001e5a61aec348dcc6d18ad4e5c3e2fed5a72960d36af3b1d)

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