STC SA1132NW-D

Increase seating arrangement from 26F/387Y to 42F/387Y by converting upper deck lounge to first class seating with 16 seats. Install auxiliary galley in Zone B and replace upper deck galley with a new galley. Approved for model 747-122.

Historical Issued Aircraft Large Multi-Engine Rev 12/18/1981 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 (1)

A20WE The Boeing Company · 747-100 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 ↗