Head End
No failure report names the head end. 11 FAA approvals let 6 companies make a replacement head end, Rockwell Collins INC holding the most (4).
Approved replacement parts 11 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a head end and sell it as an approved part for the models named. These are the companies holding such approvals for a head end:
For these models most: Boeing 747 (4), Boeing 737 (4), Mcdonnell Douglas MD-11 (1), Airbus A340 (1), Airbus A330 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Rockwell Collins INC | Head End Modulator 607295-0001 | 607295-0001 | Airbus A340-211, -212, -213 | 2016-06-01 | current |
| Rockwell Collins INC | Head End Modulator 607295-0001 | 607295-0001 | Boeing 747-400 | 2016-06-01 | current |
| Rockwell Collins INC | Head End Modulator 607295-0001 | 607295-0001 | Boeing 747-400 Series | 2016-06-01 | current |
| Rockwell Collins INC | Head End Modulator Instl. 607295-0001 | 607295-0001 | Airbus A330-301 A340-211 A340-212 A340-311 A340-312 | 2016-06-01 | current |
| Aviation Materials Management, INC | Head end Assy 273A1103-1 | 273A1103-1 | Boeing 737-600 Series, 737-700 Series,... | 2015-02-12 | current |
| Aviation Materials Management, INC. | Head end Assy 273A1103-1 | 273A1103-1 | Boeing 737-600 Series, 737-700 Series,... | 2014-09-04 | current |
| Aviation Materials Management INC | Head end Assy 273A1103-1 | 273A1103-1 | Boeing 737-600 Series, 737-700 Series,... | 2013-02-26 | current |
| Aviation Materials Management INC | Head end Assy 273A1103-1 | 273A1103-1 | Boeing 737-600 Series, 737-700 Series,... | 2010-10-05 | current |
| Interactive Flight Technologies INC | Head-end Distribution Unit 10000351-1 | Modification Part | Boeing 747-300 | 1997-11-17 | current |
| Hughes Avicom Intn'L | Head End Modulator 607295-0001 | Boeing 607295-0001 | Boeing 747-400 | 1997-08-12 | current |
| Interactive Flight Technologies INC | Head-end Distribution Unit (HDU) 10000351-1 | Modification Part | McDonnell Douglas MD-11 | 1997-03-04 | 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.