FAA · Supplemental Type Certificate
STC SE01232AT
Installation of Unison Ignition Lead, P/N 10-395428-3, 38.5-inch Type 3 Ignition Lead.
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 (10)
- E1NE Pratt & Whitney Canada Inc. · JT15D-1
- E1NE Pratt & Whitney Canada Inc. · JT15D-4
- E25EA Pratt & Whitney Canada Inc. · JT15D-5A
- E25EA Pratt & Whitney Canada Inc. · JT15D-1A
- E25EA Pratt & Whitney Canada Inc. · JT15D-1B
- E25EA Pratt & Whitney Canada Inc. · JT15D-4
- E25EA Pratt & Whitney Canada Inc. · JT15D-4B
- E25EA Pratt & Whitney Canada Inc. · JT15D-1
- E25EA Pratt & Whitney Canada Inc. · JT15D-4D
- E25EA Pratt & Whitney Canada Inc. · JT15D-5
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 ↗