# STC SA5783NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Onboard Systems International, United States
- Description: Fabrication of Onboard Systems Model 7 CROPHAWK spray flow measuring system.
- Applied: August 23, 1992
- Status date: October 7, 2021
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 1A16](https://openairdocs.org/tcds/1A16), [TCDS 1H11](https://openairdocs.org/tcds/1H11), [TCDS A47EU](https://openairdocs.org/tcds/A47EU), [TCDS A4SW](https://openairdocs.org/tcds/A4SW)
- Certificate PDF: https://openairdocs.org/files/sha256/d3/5d/d35d5fa68f81fcf31e2050796ceb1941006a1b2b2dfcad0bc400f76ed8d8275d
- Approved model list and other attachments: [AML SA5783NM.pdf](https://openairdocs.org/files/sha256/8f/bd/8fbdb5c624ad530be56b02919db2d5961e75c4cbe0573a942ba6a2001eb1be60)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C84CD8F80F99F00C862587E5004A41E1.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA5783NM

## ADs that name it (0)

None.

## Approved models (18)

- Allied Ag Cat Productions Inc. G-164A ([TCDS 1A16](https://openairdocs.org/tcds/1A16))
- Centerpointe Aerospace Inc. S-58A ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Centerpointe Aerospace Inc. S-58B ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Centerpointe Aerospace Inc. S-58BT ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Centerpointe Aerospace Inc. S-58C ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Centerpointe Aerospace Inc. S-58D ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Centerpointe Aerospace Inc. S-58DT ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Centerpointe Aerospace Inc. S-58E ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Centerpointe Aerospace Inc. S-58ET ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Centerpointe Aerospace Inc. S-58F ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Centerpointe Aerospace Inc. S-58FT ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Centerpointe Aerospace Inc. S-58G ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Centerpointe Aerospace Inc. S-58H ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Centerpointe Aerospace Inc. S-58HT ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Centerpointe Aerospace Inc. S-58J ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Centerpointe Aerospace Inc. S-58JT ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Polskie Zaklady Lotnieze Spolka zo.o PZL M18 ([TCDS A47EU](https://openairdocs.org/tcds/A47EU))
- Thrush Aircraft Inc. S-2R ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))

## 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 ___

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___

### AML SA5783NM.pdf

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

ITEMI PZL-Mielec| PZL-M18 I Corp. Ayres | Schweizer MAKE AIRCRAFT S-2R I G-164A MODEL AIRCRAFT A47 EU A4SW 1A16 NUMBER CERTIFICATE TYPE ORIGINAL Page 1 of 1 | through 23-16, 11/19/73 amendments 23-1 EAR Pa, 231 effective iness requirements of (1) using the airworth-l FAR 21.29, FAR 21.25 (a) Category 10/11/50, Restricted CAR 8 Effective Category 3/19/57, Restricted Appendix B, as amended ive 10/11/50, and CAM 8|120-012-00 |August 10, CAR 8.10(a) (1) effect- |Onboard # ALTERATION FOR BASTS CERTIFICATION ONBOARD SYSTEMS FOR FAA APPROVED MODEL Date: Oet 29,1992 FAA Approved: NUMBER (AML) NO. SA5783NM Seattle Aircraft Certification Office Manager, Special Certification Branch 1992 | Revision 2 AND DATE ¡REVISION NO. DRAWING LIST DRAWING/ FAA SEALED None NO. AND DATE SUPPLEMENT AFM Issue Date:

NC DATE AMENDMENT AML October 29, 1992

## Every issue (2)

- October 7, 2021: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/d3/5d/d35d5fa68f81fcf31e2050796ceb1941006a1b2b2dfcad0bc400f76ed8d8275d), [AML SA5783NM.pdf](https://openairdocs.org/files/sha256/8f/bd/8fbdb5c624ad530be56b02919db2d5961e75c4cbe0573a942ba6a2001eb1be60)
- October 29, 1992: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/42/61/4261c822d0de99f5117ba049fec8a0d44ed3d5169d572b618557bd5b91f5a75e), [AML SA5783NM.pdf](https://openairdocs.org/files/sha256/8f/bd/8fbdb5c624ad530be56b02919db2d5961e75c4cbe0573a942ba6a2001eb1be60)

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