Hydraulic System
346 failure reports named the hydraulic system in the last ten years, 886 since 1995, most often on the Boeing 737; the condition most often found was "leaking". 26 FAA approvals let 7 companies make a replacement hydraulic system, Airborne Maintenance & Engineering Services holding the most (12).
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1995 | 1 |
| 1996 | 1 |
| 1997 | 3 |
| 1998 | 6 |
| 2000 | 18 |
| 2001 | 33 |
| 2002 | 27 |
| 2003 | 17 |
| 2004 | 31 |
| 2005 | 39 |
| 2006 | 60 |
| 2007 | 44 |
| 2008 | 48 |
| 2009 | 23 |
| 2010 | 30 |
| 2011 | 32 |
| 2012 | 25 |
| 2013 | 43 |
| 2014 | 36 |
| 2015 | 23 |
| 2016 | 26 |
| 2017 | 37 |
| 2018 | 30 |
| 2019 | 18 |
| 2020 | 20 |
| 2021 | 31 |
| 2022 | 30 |
| 2023 | 13 |
| 2024 | 55 |
| 2025 | 44 |
| 2026 | 42 |
Which system the reports file it under last ten years
Reports by system, as a table
| reports | |
|---|---|
| Heating, ice protection and utility systems | 338 |
| Landing gear | 4 |
| Flight controls | 2 |
| Electrical power | 1 |
| Emergency equipment | 1 |
Models most often reporting it last ten years
How it failed the condition found, last ten years
Conditions found, as a table
| reports | |
|---|---|
| leaking | 81 |
| low | 58 |
| failed | 36 |
| low pressure | 26 |
| overserviced | 23 |
| malfunctioned | 21 |
| faulted | 14 |
| warning message | 14 |
| contaminated | 13 |
| unknown | 7 |
Engines most often reporting it
Approved replacement parts 26 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a hydraulic system and sell it as an approved part for the models named. These are the companies holding such approvals for a hydraulic system:
For these models most: Boeing 737 (12), Boeing 727 (4), Bell 412 (4), Piper PA-46 Malibu, Mirage, Matrix and M-Class (2), Piper PA-31 Navajo and Chieftain (1), Mcdonnell Douglas MD-11 (1), Dassault FALCON 7 (1), Airbus A321 (1), Airbus A320 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Rsg Products INC | Hydraulic System Modification 01BL229160002-01 | 01BL229160002-01 | Bell Textron Inc 412EP | 2024-08-14 | current |
| Rsg Products INC | Hydraulic System Modification 01BL229160001-01 | 01BL229160001-01 | Bell Textron Inc 412EP | 2024-08-14 | current |
| Mra Systems, LLC | Hydraulic System Installation Kit 612C3400-079 | 612C3400-079 | Airbus SAS A320-252N, A320-253N, A321-251N | 2024-01-09 | current |
| Airborne Maintenance & Engineering Services | HYDRAULIC SYSTEM INSTL (B737-700) 0370-29-0000-9 | 0370-29-0000-9 | Boeing 737-700 | 2022-07-11 | current |
| Airborne Maintenance & Engineering Services | Hydraulic System Install (B737-400) 007-00817-79 | 007-00817-79 | Boeing 737-400 | 2022-07-11 | current |
| Airborne Maintenance & Engineering Services | Hydraulic System Install (B737-300) 007-00817-69 | 007-00817-69 | Boeing 737-300 | 2022-07-11 | current |
| Airborne Maintenance & Engineering Services | Hydraulic System Install - WW FR Config 007-00800-59 | 007-00800-59 | Boeing 737-200/300 | 2022-07-11 | current |
| Airborne Maintenance & Engineering Services | Hydraulic System Install (B737-400 / Stainless Steel Fittings) 007-00817-89 | 007-00817-89 | Boeing 737-400 | 2022-07-11 | current |
| Airborne Maintenance & Engineering Services | Hydraulic System Install, Fuselage - Tail Config 007-00800-29 | 007-00800-29 | Boeing 737-200/300 | 2022-07-11 | current |
| Airborne Maintenance & Engineering Services | HYDRAULIC SYSTEM INSTL (B737-700) 0370-29-0000-9 | 0370-29-0000-9 | Boeing 737-700 | 2022-07-11 | current |
| Airborne Maintenance & Engineering Services | Hydraulic System Schematic With 3 Way 2pos 007-00820-9 | 007-00820-9 | Boeing 737-200/300 | 2022-07-11 | current |
| Airborne Maintenance & Engineering Services | Hydraulic System Schematic With 3 Way 2pos 007-00820-19 | 007-00820-19 | Boeing 737-200/300 | 2022-07-11 | current |
| Airborne Maintenance & Engineering Services | Hydraulic System Installation - Tail Config 007-00800-9 | 007-00800-9 | Boeing 737-200/300 | 2022-07-11 | current |
| Airborne Maintenance & Engineering Services | Hydraulic System Install - WW Config 007-00800-49 | 007-00800-49 | Boeing 737-200/300 | 2022-07-11 | current |
| Airborne Maintenance & Engineering Services | Hydraulic System Install 007-00817-59 | 007-00817-59 | Boeing 737-300/400 | 2022-07-11 | current |
| Rsg Products INC | Hydraulic System Modification 01BL229160002-01 | 01BL229160002-01 | Bell 412EP | 2020-10-07 | current |
| Rsg Products INC | Hydraulic System Modification 01BL229160001-01 | 01BL229160001-01 | Bell 412EP | 2020-10-07 | current |
| Parker Hannifin CORP | Hydraulic System Control Board 910364-3 | 910364-3 | Dassault Falcon 7X | 2011-08-09 | current |
| Honeywell International INC | Hydraulic System Controller 4059021-901 | Douglas 4059021-901 | McDonnell Douglas MD-11, -11F | 1991-05-30 | current |
| Tactair Fluid Controls INC | Hydraulic System 1143-A1130 | - | Piper PA-46-350P T.C.D.S. A25S0 | 1989-02-09 | current |
| Tactair Fluid Controls INC | Hydraulic System 1143-1-A1130 | - | Piper PA-46-310P T.C.D.S. A25S0 | 1989-02-09 | current |
| Tactair Fluid Controls INC | Hydraulic System 1143-A0610 | - | Piper PA-31.-31T -31T3, -31-350, -42-720 | 1989-02-09 | current |
| Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt | Hydraulic System Tank Unit Simmonds P/N EA1065A-2406,... | - | Boeing 727 | 1982-01-05 | current |
| Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt | Hydraulic System Tank Unit Simmonds P/N EA1093A-2408,... | - | Boeing 727 | 1982-01-05 | current |
| Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt | Hydraulic System Tank Unit Simmonds P/N EA1065A-2721,... | - | Boeing 727 | 1982-01-05 | current |
| Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt | Hydraulic System Tank Unit Simmonds P/N EA1065A-2371,... | - | Boeing 727 | 1982-01-05 | 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.
