FAA · Supplemental Type Certificate
STC SA2534SW-D
Replacement of Switch assembly Int'l Inflatables Co. P/N 68748, with DME Corp. P/N L-140 in emergency evacuation slide lighting 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 (13)
- 4A21 The Boeing Company · 707-100 Long Body
- 4A21 The Boeing Company · 707-200
- 4A26 The Boeing Company · 707-300
- 4A28 The Boeing Company · 720
- A16WE The Boeing Company · 737-200 Series
- A16WE The Boeing Company · 737
- A3WE The Boeing Company · 727
- 4A27 General Dynamics Corporation · 22
- 4A27 General Dynamics Corporation · 22M
- 4A30 General Dynamics Corporation · 30
- 4A30 General Dynamics Corporation · 30A
- 4A25 McDonnell Douglas Corporation · DC-8 Series
- A6WE McDonnell Douglas Corporation · DC-9 Series
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗