Fuel nozzle heat shield

A method of repairing a fuel nozzle apparatus for a gas turbine engine after field use, wherein the fuel nozzle apparatus includes an annular pilot housing, the pilot housing including a conical wall section, an annular main fuel injector surrounding the pilot housing, an annular fuel nozzle casing, and a heat shield having an annular shield wall, an annular shield flange extending radially outward from an aft end of the shield wall, an annular baffle flange surrounding the shield wall, and disposed such that an axial gap is defined between the shield flange and the baffle flange, the baffle flange including a radially outer rim extending axially forward therefrom, and a plurality of impingement cooling holes passing through the baffle flange and oriented so as to direct air flow towards the shield flange, the method comprising:

• separating the heat shield from the pilot housing and the fuel nozzle casing;
• assembling the conical wall section of the pilot housing to a counterbore formed in the cylindrical section of a replacement heat shield through a slip fit;
• and
• metallurgically bonding an aft end of the annular fuel nozzle casing to a radially outer rim of a baffle flange of the replacement heat shield.