Miniature Reading
No failure report names the miniature reading. 4 FAA approvals let 1 company make a replacement miniature reading, Welch Allyn INC holding the most (4).
Approved replacement parts 4 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a miniature reading and sell it as an approved part for the models named. These are the companies holding such approvals for a miniature reading:
For these models most: Boeing 777 (2), Boeing 747 (2), Boeing 767 (1), Boeing 757 (1), Boeing 737 (1), Airbus A340 (1), Airbus A330 (1), Airbus A321 (1), Airbus A320 (1), Airbus A319 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Welch Allyn INC | Miniature Reading Light 998502-8 | ANSI 2059 | Boeing 747-400 | 2003-08-03 | current |
| Welch Allyn INC | Miniature Reading Lamp 998502-18 | Hella 8GH005678-06 | Airbus A319, A320, A321 | 2003-02-19 | current |
| Welch Allyn INC | Miniature Reading Lamp 998502-4 | Boeing 2059x | Boeing 777-200, 747-400 | 1997-05-12 | current |
| Welch Allyn INC | Miniature Reading Lamp 998502-10 | Boeing 9204 | Boeing 737-300, -500, 757-200 | 1997-05-12 | 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.