The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · reissued

SA3430NM

Installation of a Lavatory Auto Dump Drain Valve Modification in accordance with FAA approved Kaiser ElectroPrecision Drawing List DL 0182-0016, Revision "M", dated June 30, 1989, or later FAA approved revision. Held by Rockwell Collins INC., which holds 19 approved modifications in all. Last revised November 17, 2011. System: engine.

What it applies to

Kind of product
Aircraft
Design holder
The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company
Models
747-100 Series, 747-200B Series, 747-200C Series, 747-200F Series, 747SP Series
Type certificates
A20WE, A20WE, A20WE, A20WE, A20WE
On this site
Boeing 747 192 registered
The FAA's record
On the FAA's site

What an approved modification is

A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.

Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 20, 2026.