331-350C APU Serviceable Parts
The 331-350C APU is used on Airbus A330 and A340-200/300 aircraft and in recent years supplying serviceable parts for this APU type has become one of our major product lines.
Load Gearbox and Load Compressor Modules of 331-350C R-505C, February 2020.
The parts of 331-350C R-505C at TurbineAero during teardown, February 2020.
In December 2019 we purchased our fifth 331-350C for teardown, serial number R-505C
The APU was disassembled at TurbineAero’s workshop in Thailand. The Load Compressor (3804007-14) and Load Gearbox (3805028-7) were kept as modules and are now in stock at Swanaero in serviceable condition. The Power Section was fully disassembled and the serviceable and repaired parts came into our stock in early 2020.
331-350C R-400C at TurbineAero before teardown
331-350C R-400C at TurbineAero before teardown
In September 2018 we purchased our fourth ‘-350C for teardown, serial number R-400C previously operated by Air China.
The APU was disassembled at TurbineAero’s workshop in Thailand and serviceable and overhauled parts came into Swanaero stock in early 2019.
331-350C R-372C before teardown
331-350C APU R-657C after removal from the aircraft
Our third 331-350C APU teardown was serial number R-372C and parts from this APU came into stock in April 2018. The APU was previously operated by Thai Airways and was disassembled and inspected at TurbineAero’s workshop in Thailand.
Our second 331-350C teardown took place in mid 2017 when ex-Air France APU serial number R-657C was disassembled and inspected at TurbineAero’s workshop in Thailand. The parts came into stock at Swanaero in October 2017.
331-350C R-504C during teardown
331-350C R-504C before teardown
We carried out our first 331-350C APU disassembly in 2016 when ex-Cathay Pacific serial number R-504C was used for teardown to parts. The power section of the APU was torn down at the workshop of Dublin Aerospace and serviceable and overhauled LRUs and piece parts came into stock in mid-2016. The Load Compressor and Load Gearbox modules were torn down at Triumph Aviation Services Asia and serviceable parts from these modules came into stock in early 2017.
Examples of the parts we have in stock from R-372C, R-504C and R-657C are listed below, all in stock ready to go with EASA Form 1 / FAA 8130-3.
| Part Number | Description |
|---|---|
| 3842101-3 | 1st Stage Turbine Disk (CSN 12919, TSN 11867.9) |
| 3842101-3 | 1st Stage Turbine Disk (CSN 27432, TSN 27887) |
| 3842330-2 | 2nd Stage Turbine Disk (CSN 12919, TSN 11867.9) |
| 3844421-1 | Shroud Segments-Second Stage |
| 3844898-1 | Nozzle Segments-First Stage |
| 3846634-2 | Nozzle Segments-Second Stage |
| 3613670-4 | Exhaust Housing |
| 3826576-2 | Diffuser-First Stage |
| 3840097-1 | Seal and Coupling |
| 3844332-9 | Support Assembly Bearing Turbine |
| 3844410-2 | Cover Assembly – Rear Bearing |
2nd Stage Disk and Blades
3rd Stage Disk
Fuel Control Unit
Load Control Valve
| Part Number | Description |
|---|---|
| 3876144-1 | Oil Sump Temp Sensor |
| 3876185-2 | Solenoid Valve |
| 3876186-4 | LOP Switch |
| 3876197-1 | Monopole |
| 3876203-1 | High Oil Temperature Switch |
| 3876229-1 | LCIT Sensor |
| 3883451-1 | Primary Fuel Manifold |
| 3883452-1 | Secondary Fuel Manifold |