FAA · Supplemental Type Certificate
STC SA5176NM
Installation of an ADC Corporation Model 5001A engine pre-oiler 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 (19)
- A6CE Cessna Aircraft Company · 337
- A6CE Cessna Aircraft Company · 337A
- A6CE Cessna Aircraft Company · 337B
- A6CE Cessna Aircraft Company · 337C
- A6CE Cessna Aircraft Company · 337D
- A6CE Cessna Aircraft Company · 337E
- A6CE Cessna Aircraft Company · 337F
- A6CE Cessna Aircraft Company · 337G
- A6CE Cessna Aircraft Company · 337H
- A6CE Cessna Aircraft Company · M337B
- A6CE Cessna Aircraft Company · P337H
- A6CE Cessna Aircraft Company · T337B
- A6CE Cessna Aircraft Company · T337C
- A6CE Cessna Aircraft Company · T337D
- A6CE Cessna Aircraft Company · T337E
- A6CE Cessna Aircraft Company · T337F
- A6CE Cessna Aircraft Company · T337G
- A6CE Cessna Aircraft Company · T337H
- A6CE Cessna Aircraft Company · T337H-SP
Certification basis — 14 CFR
Specific sections
- Sec. 111
- Sec. 113
- Sec. 115
- Sec. 117
- Sec. 119
- Sec. 120
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗