FAA · Supplemental Type Certificate
STC SE2805SO
Installation of an oil tank safety cap adapter which is intended to prevent loss of oil in the event of loss or damage to the oil filler cap.
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)
- E20NE Pratt & Whitney Canada Inc. · PW118
- E20NE Pratt & Whitney Canada Inc. · PW123
- E20NE Pratt & Whitney Canada Inc. · PW120A
- E20NE Pratt & Whitney Canada Inc. · PW121
- E20NE Pratt & Whitney Canada Inc. · PW120
- E20NE Pratt & Whitney Canada Inc. · PW126A
- E20NE Pratt & Whitney Canada Inc. · PW119B
- E20NE Pratt & Whitney Canada Inc. · PW118A
- E20NE Pratt & Whitney Canada Inc. · PW124B
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 ↗