Lavatory Systems
No failure report names the lavatory systems. 5 FAA approvals let 2 companies make a replacement lavatory systems, Northwest Aerospace Technologies INC holding the most (3).
Approved replacement parts 5 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a lavatory systems and sell it as an approved part for the models named. These are the companies holding such approvals for a lavatory systems:
For these models most: Boeing 737 (3), Boeing 757 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Northwest Aerospace Technologies INC | Lavatory Systems 455NT300-1 | 455NT300-1 | Boeing 737-800 | 2015-01-22 | current |
| Northwest Aerospace Technologies INC | Lavatory Systems 456NT300-3 | 456NT300-3 | Boeing 737-900/900ER | 2015-01-06 | current |
| Northwest Aerospace Technologies INC | Lavatory Systems 456NT300-1 | 456NT300-1 | Boeing 737-900/900ER | 2015-01-06 | current |
| Precision Conversions LLC | Lavatory Systems 007D4796 | Modification Parts | Boeing 757-200 Series | 2006-01-16 | current |
| Precision Conversions LLC | Lavatory Systems Instl 007D4796 | Modification Parts | Boeing 757-200 Series | 2005-07-27 | current |
Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.