Tru
63 failure reports named the tru in the last ten years, 160 since 1995, most often on the Boeing 767; the condition most often found was "malfunctioned". 2 FAA approvals let 2 companies make a replacement tru, Honeywell International INC. holding the most (1).
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1995 | 1 |
| 1997 | 3 |
| 1998 | 3 |
| 1999 | 7 |
| 2000 | 1 |
| 2002 | 5 |
| 2003 | 4 |
| 2004 | 2 |
| 2005 | 6 |
| 2006 | 3 |
| 2007 | 4 |
| 2009 | 4 |
| 2010 | 9 |
| 2011 | 12 |
| 2012 | 9 |
| 2013 | 9 |
| 2014 | 10 |
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 8 |
| 2018 | 13 |
| 2019 | 10 |
| 2020 | 10 |
| 2021 | 4 |
| 2023 | 1 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 6 |
Which system the reports file it under last ten years
Reports by system, as a table
| reports | |
|---|---|
| Electrical power | 45 |
| Engine | 17 |
| Instruments and avionics | 1 |
Models most often reporting it last ten years
How it failed the condition found, last ten years
Conditions found, as a table
| reports | |
|---|---|
| malfunctioned | 21 |
| failed | 15 |
| faulted | 5 |
| faulty | 5 |
| inoperative | 5 |
| fod | 3 |
| shorted | 2 |
| activated | 1 |
| arced | 1 |
| dirty | 1 |
Engines most often reporting it
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a tru and sell it as an approved part for the models named. These are the companies holding such approvals for a tru:
For these models most: Gulfstream G-IV Gulfstream IV (1), Gulfstream G-1159 Gulfstream II and III (1), Embraer ERJ 190 E190 and E195 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Eldec Corporation | TRU Assy, ERJ 170/190 81-008-03 | 5913152-2 | Embraer ERJ 190-100 IGW, -100 LR, -100 STD | 2023-01-12 | current |
| Honeywell International INC. | TRU 9B40-24-A | 1159SCAV373-401 | Gulfstream G-1159, G-IV | 2022-09-12 | 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.