FAA · Supplemental Type Certificate
STC ST01887SE-D
Installation of a lavatory bi-fold door on McDonnell Douglas DC-9-82 (MD-82) and DC-9-83 (MD-83) series aircraft in accordance with Jamco America, Inc., Master Drawing List (MDL) MDL1217-1, Rev. C, dated December 3, 2009, or later Federal Aviation Administration (FAA) approved revision.
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 (2)
Specific sections
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗