FAA · Supplemental Type Certificate
STC SA09759DS
Installation of an S-TEC 01326 Digital Flight Control System (DFCS)
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 (9)
- A20SO Piper Aircraft Inc. · PA-31
- A20SO Piper Aircraft Inc. · PA-31-300
- A20SO Piper Aircraft Inc. · PA-31-325
- A20SO Piper Aircraft Inc. · PA-31-350
- A8EA Piper Aircraft Inc. · PA-31P
- A8EA Piper Aircraft Inc. · PA-31P-350
- A8EA Piper Aircraft Inc. · PA-31T
- A8EA Piper Aircraft Inc. · PA-31T1
- A8EA Piper Aircraft Inc. · PA-31T2
Specific sections
- § 21.47
- § 21.55
- § 21.111
- § 21.113
- § 21.115
- § 21.117
- § 21.119
- § 21.120
- Sec. 23.143
- Sec. 23.301
- Sec. 23.303
- Sec. 23.305
- Sec. 23.307
- Sec. 23.395
- Sec. 23.397
- Sec. 23.561
- Sec. 23.601
- Sec. 23.603
- Sec. 23.605
- Sec. 23.607
- Sec. 23.609
- Sec. 23.611
- Sec. 23.613
- Sec. 23.619
- Sec. 23.625
- Sec. 23.627
- Sec. 23.671
- Sec. 23.677
- Sec. 23.685
- Sec. 23.689
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗