Export Control
EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.Copyright
© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).Applicability
All
Common Information
TASK 73-13-41-100-201 Fuel Nozzle And Support Assembly - Clean The Fuel Nozzle With Heat (Pyrolytic Cleaning)
General
This TASK gives the procedure to clean the fuel nozzle and support assembly with heat (pyrolytic cleaning). An alternative to this procedure is given in Cleaning-003 TASK 73-13-41-100-203.
The practices and processes referred to in this procedure by the TASK numbers are in the SPM.
Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the IPC.
Reference
Refer to SPM TASK 70-10-00-100-501, Cleaning - General Information.
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Oven | LOCAL | Oven | Variable to 1100 deg F (593 deg C) - local purchase |
Consumables, Materials and Expendables
NONESpares
NONESafety Requirements
NONEProcedure

CAUTION
MAKE SURE THE FUEL IS COMPLETELY REMOVED AND THE ASSEMBLY IS BACKFLUSHED AND AIR-DRIED BEFORE YOU CLEAN THE ASSEMBLY. THIS WILL REMOVE LOOSE CONTAMINATION AND PREVENT POSSIBLE DAMAGE CAUSED BY REMAINING FUEL COMBUSTION.Flush the assembly. Refer to Cleaning-004 TASK 73-13-41-100-204.
Bake in air for up to eight hours.

CAUTION
DO NOT EXCEED 1100 DEG F (593 DEG C) MAXIMUM.Turn the oven on. Set the temperature to 1000 deg F (538 deg C).
Remove the assembly from the oven.
Flush the assembly. Refer to Cleaning-004 TASK 73-13-41-100-204.
SUBTASK 73-13-41-160-051 Clean the Fuel Nozzle and Support Assembly with Heat
