STC ST00834LA

Installation of fireproof blankets on the Engine Fan Reverser Core Cowl and Sidewalls, in lieu of Fireproof Insulation Coating MA25S.

Current Issued Aircraft Large Multi-Engine Rev 06/02/1999 View PDF on drs.faa.gov ↗

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 (4)

A1NM The Boeing Company · 767-200 Series
A1NM The Boeing Company · 767-300 Series
A20WE The Boeing Company · 747-400 Series
A20WE The Boeing Company · 747-400F Series

Certification basis — 14 CFR

Part 21

Specific sections

§ 21.111
§ 21.113
§ 21.115
§ 21.117
§ 21.119
§ 21.120

The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗