Modulator
2 failure reports named the modulator in the last ten years, 13 since 2001, most often on the Boeing 737; the condition most often found was "faulty". 12 FAA approvals let 7 companies make a replacement modulator, Loral Electro-Optical Sys holding the most (2).
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 2001 | 1 |
| 2004 | 4 |
| 2006 | 1 |
| 2007 | 1 |
| 2008 | 1 |
| 2009 | 1 |
| 2011 | 1 |
| 2013 | 1 |
| 2017 | 1 |
| 2022 | 1 |
Which system the reports file it under last ten years
Reports by system, as a table
| reports | |
|---|---|
| Heating, ice protection and utility systems | 2 |
Models most often reporting it last ten years
Models most reported, as a table
| reports | |
|---|---|
| Boeing 737 | 2 |
How it failed the condition found, last ten years
Conditions found, as a table
| reports | |
|---|---|
| faulty | 1 |
| out of adjust | 1 |
Approved replacement parts 12 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a modulator and sell it as an approved part for the models named. These are the companies holding such approvals for a modulator:
For these models most: Boeing 747 (8), Mcdonnell Douglas MD-11 (2), Boeing 737 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Panasonic Avionics Corporation | R.F. Modulator RD-AV6001-01 | Modification Part | Boeing 737-700 | 2015-04-19 | current |
| Bae Systems | Modulator Assembly 2011600 | 2011600 | Boeing 747-2G4B S/N 23824 S/N 23825 | 2012-06-05 | current |
| Bae Systems | Modulator Assembly 2011600 | 2011600 | Boeing 747-428 S/N 25629 | 2012-06-05 | current |
| Bae Systems INC | Modulator Assembly 2011600 | 2011600 | Boeing 747-428 S/N 25629 | 2012-06-05 | current |
| Bae Systems INC | Modulator Assembly 2011600 | 2011600 | Boeing 747-2G4B S/N 23824 S/N 23825 | 2012-06-05 | current |
| Honeywell International INC | Modulator, Schedule Instl, 3244758 | P&WC 3244758 | Pratt & Whitney Canada JTl5D-4 | 2002-11-14 | current |
| Interactive Flight Technologies INC | Modulator Assembly 200-008-10 | Modification Part | McDonnell Douglas MD-11 | 1996-11-13 | current |
| Lockheed Martin, Electro-Optical Systems | Modulator Assembly 1169276-1 F/F/A | Modification Part | Boeing 747-2G4B (RD166, S/N 23824, RD167 | 1996-06-13 | current |
| Lockheed Martin, Electro-Optical Systems | Modulator Assembly 2011600 | Modification Part | Boeing 747-428, -430 | 1996-06-13 | current |
| Interactive Flight Technologies INC | Modulator Assembly 200-008-10 | Modification Part | McDonnell Douglas MD-11 | 1996-06-04 | current |
| Loral Electro-Optical Sys | Modulator Assembly 1169276-1 F/F/A | Modification Part | Boeing 747-2G4B (RD166, S/N 23824, RD167 | 1995-11-13 | current |
| Loral Electro-Optical Sys | Modulator Assembly 2011600 | Modification Part | Boeing 747-428, 747-430 | 1995-11-13 | 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.