Single Universal
No failure report names the single universal. 6 FAA approvals let 2 companies make a replacement single universal, Learjet INC holding the most (5).
Approved replacement parts 6 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a single universal and sell it as an approved part for the models named. These are the companies holding such approvals for a single universal:
For these models most: Learjet 31 (4), Learjet 35 (1), Bombardier CL-600 Challenger and CRJ (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Learjet INC | Single Universal UNS-1C+ or UNS-1E Flight Management... BAS31017000 | Modification Part | Learjet 31A | 2006-09-25 | current |
| Learjet INC | Single Universal Avionics Systems Corporation UNS-1C FMS... BAS31010008 | Modification Part | Learjet 31A | 2004-04-14 | current |
| Learjet INC | Single Universal Avionics Systems Corporation UNS-1B... BAS31010006 | Modification Part | Learjet 31A | 2004-04-14 | current |
| Learjet INC | Single Universal Avionics Systems Corporation UNS-1K... BAS35010029 | Modification Part | Learjet 31, 35, 35A | 2004-04-14 | current |
| Learjet INC | Single Universal Avionics Systems Corporation UNS-1C... BAS63010036 | Modification Part | Bombardier, Inc. CL-600-1A11 | 2004-02-08 | current |
| New Systems | Single Universal Avionics UNS-1K Navigation Management System 228-00-0002-7 | Modification Part | Fokker F-27 MK050. | 2000-10-22 | 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.