Litton Heading
No failure report names the litton heading. 3 FAA approvals let 3 companies make a replacement litton heading, Northrop Grumman, Litton Systems INC holding the most (1).
Approved replacement parts 3 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a litton heading and sell it as an approved part for the models named. These are the companies holding such approvals for a litton heading:
For these models most: Airbus A300 (3).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Northrop Grumman Guidance and Electronics CO INC | Litton Heading and Attitude System (LHAS) All parts noted on Top... | Modification Part | Airbus A300 B2-203 B4-203 B4-103 Series. | 2008-02-21 | current |
| Northrop Grumman, Litton Systems INC | Litton Heading and Attitude System (LHAS) All parts noted on Litton... | Modification Part | Airbus A300 B2-203, B4-203, B4-103 Series... | 2005-01-12 | current |
| Litton Systems INC | Litton Heading and Attitude System All parts noted on Litton... | Modification Part | Airbus A300 Model B2-203 and B4-203 Series | 2001-03-27 | 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.