FAA · Supplemental Type Certificate
STC SA5783NM
Fabrication of Onboard Systems Model 7 CROPHAWK spray flow measuring system.
What is an STC?
A Supplemental Type Certificate authorizes a major modification or alteration to an FAA-certificated aircraft. STCs are how operators legally install new avionics, change fuel systems, add floats, swap engines, etc. — every change beyond a minor modification needs one.
Applicable aircraft (18)
- 1A16 Allied Ag Cat Productions Inc. · G-164A
- 1H11 Centerpointe Aerospace Inc. · S-58A
- 1H11 Centerpointe Aerospace Inc. · S-58B
- 1H11 Centerpointe Aerospace Inc. · S-58BT
- 1H11 Centerpointe Aerospace Inc. · S-58C
- 1H11 Centerpointe Aerospace Inc. · S-58D
- 1H11 Centerpointe Aerospace Inc. · S-58DT
- 1H11 Centerpointe Aerospace Inc. · S-58E
- 1H11 Centerpointe Aerospace Inc. · S-58ET
- 1H11 Centerpointe Aerospace Inc. · S-58F
- 1H11 Centerpointe Aerospace Inc. · S-58FT
- 1H11 Centerpointe Aerospace Inc. · S-58G
- 1H11 Centerpointe Aerospace Inc. · S-58H
- 1H11 Centerpointe Aerospace Inc. · S-58HT
- 1H11 Centerpointe Aerospace Inc. · S-58J
- 1H11 Centerpointe Aerospace Inc. · S-58JT
- A47EU Polskie Zaklady Lotnieze Spolka zo.o · PZL M18
- A4SW Thrush Aircraft Inc. · S-2R
Certification basis — 14 CFR
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗