FAA · Supplemental Type Certificate
STC SE04136AT
Installation of Bendix Scintilla WL-7A Battery Ignition Timer (distributor) modified from a breaker points and condenser design to a Hall Effect electronic sensor design
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)
- TC 121 Air Repair Inc. · L-4
- TC 121 Air Repair Inc. · L-4 Series
- TC 195 Air Repair Inc. · L-6 Series
- E-237 Air Repair Inc. · R-755A1
- E-237 Air Repair Inc. · R-755A2
- E-237 Air Repair Inc. · R-755B1
- E-237 Air Repair Inc. · R-755B2
- E1SW Air Repair Inc. · R-755S
- E-162 Air Repair Inc. · W670-23
- E-162 Air Repair Inc. · W670-M
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 ↗