FAA · Supplemental Type Certificate
STC SE01588AT
Installation of McClain International JT8D first stage turbine airseal as documented.
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 (8)
- E2EA Pratt & Whitney Division · JT8D-9
- E2EA Pratt & Whitney Division · JT8D-1
- E2EA Pratt & Whitney Division · JT8D-1B
- E2EA Pratt & Whitney Division · JT8D-7B
- E2EA Pratt & Whitney Division · JT8D-9A
- E2EA Pratt & Whitney Division · JT8D-7A
- E2EA Pratt & Whitney Division · JT8D-7
- 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 ↗