Section XIX.1 INSPECT PRIMARY AND SECONDARY FUEL NOZZLE ASSEMBLIES
4-19.1 INSPECT PRIMARY AND SECONDARY FUEL NOZZLE ASSEMBLIES (AVIM)
Aircraft Inspection Tool Kit (T49)
68B Aircraft Powerplant Repairer
General Safety Instructions:
Compressed air is dangerous
Fuel Nozzle Assemblies Removed From APU
when directed toward yourself
or another person.
stream or material blown by
the airstream can cause inju-
ry, particularly to the eyes
Use goggles to pro-
tect eyes and face.
exceed 30 PSI. Do not direct
airstream toward yourself or
Visually inspect fuel nozzle
assemblies as follows.
Inspect fuel inlet fitting (1) for
stripped or peened threads. No
stripped or peened threads, allowed.
Inject filtered air through fuel
inlet fitting (1) of primary and
secondary fuel nozzle assemblies to
check for obstructions.
Inspect mounting flange (2) for
burrs or nicks.
No burrs or nicks
Inspect primary and secondary fuel
nozzle assemblies passage (3) for
blockage or carbon deposits. No
blockage or carbon deposits allowed.
FOLLOW-ON MAINTENANCE: None.