FAA · Supplemental Type Certificate
STC SE59GL
Installation of O-ring face seal P/N-s 1-1337-700, -701, 1-1633-700, -701, 1-1738-700, -701; and/or 1-2233-700, 701.
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 (12)
- E2EA Pratt & Whitney Division · JT8D-7
- E2EA Pratt & Whitney Division · JT8D-1
- E2EA Pratt & Whitney Division · JT8D-7A
- E2EA Pratt & Whitney Division · JT8D-1B
- E2EA Pratt & Whitney Division · JT8D-17
- E2EA Pratt & Whitney Division · JT8D-9
- E2EA Pratt & Whitney Division · JT8D-15A
- E2EA Pratt & Whitney Division · JT8D-15
- E2EA Pratt & Whitney Division · JT8D-11
- E2EA Pratt & Whitney Division · JT8D-17AR
- E2EA Pratt & Whitney Division · JT8D-17A
- E2EA Pratt & Whitney Division · JT8D-1A
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 ↗