TM 1-1520-238-23
4-422
4.134.
NO. 1 OR NO. 2 ENGINE SECONDARY NOZZLE CRACK REPAIR (AVIM)
4.134.1. Description
This task covers:
Repair.
4.134.2. Initial Setup
Tools:
Airframe repairman’s tool kit (item 377, App H)
Light duty laboratory apron (item 27, App H)
Industrial faceshield (item 129, App H)
Fluorescent inspection kit (item 138, App H)
Pneumatic die hand grinder (item 157, App H)
Adjustable air filtering respirator (item 262, App H)
Pneumatic blind riveter (item 269, App H)
Materials/Parts:
Doubler (figure D-264, App D)
Rivet (NAS 1398D4) (as required)
Corrosion resistant coating (item 66, App F)
Polyurethane coating (item 140, App F)
Primer coating (item 147, App F)
Remover (item 150, App F)
Personnel Required:
68G
Aircraft Structural Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1500-204-23
TM 55-1500-335-23
TM 55-1500-345-23
Equipment Conditions:
Ref
Condition
4.120
No. 1 or No. 2 engine outboard secondary
nozzle or
4.121
No. 1 or No. 2 engine inboard secondary
nozzle or
4.122
No. 1 or No. 2 engine center secondary
nozzle removed
4.129
No. 1 or No. 2 engine outboard and center
secondary nozzle vertical heat shield and
support bracket removed
4.130
No. 1 or No. 2 engine secondary nozzle hor-
izontal heat shield and shield panel re-
moved
4.131
No. 1 or No. 2 engine inboard secondary
nozzle heat shield and support bracket re-
moved
4.134.3. Repair
a. Remove paint from inside surface of affected area on nozzle. Use remover (item 150, App F).
b. Transfer hole locations to be drilled onto exterior surface of nozzle. Use dividers.
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