FAA · Supplemental Type Certificate
STC SA3-662
Installation of Woodward propeller unfeathering accumulator kit number210341.
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 (7)
- 3A10 The Cessna Aircraft Company · 310F
- 3A10 The Cessna Aircraft Company · 310
- 3A10 The Cessna Aircraft Company · 310A (USAF U-3A)
- 3A10 The Cessna Aircraft Company · 310B
- 3A10 The Cessna Aircraft Company · 310E (USAF U-3B)
- 3A10 The Cessna Aircraft Company · 310D
- 3A10 The Cessna Aircraft Company · 310C
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 ↗