Textron Bell 412, Maintenance Manual

Page: 42 / 288

BHT-412-MM-2
5-00-00
Page 10
Rev. 25 7 NOV 2016 Export Classification C, ECCN EAR99
Chapter 5 5. Review Special Inspections and carry out applicable
inspections.
6. Examine all inspection windows and sight glasses for
cracking, crazing, and discoloration. If any of these conditions
are present, the part must be removed and replaced prior to
returning helicopter for service.
Service Instruction
(SI) 7. Ensure all required inspections of installed BHT kits not
covered in this inspection have been performed, as applicable.
Chapter 21 BLEED AIR HEATING SYSTEM COMPONENTS
1. Visually inspect heater compartment for cleanliness,
condition, and security of heating system components, wiring,
ducts, supports, and structure for damage and corrosion.
2. Visually inspect overhead ventilating system components
for condition and security.
3. Visually inspect heat/vent air ducts for condition and
security.
4. Visually inspect ventilation/defog components for condition
and security.
Chapter 25 CREW/PASSENGERS SEATS
1. Visually inspect crew seats for condition, security, and
operation.
2. Visually inspect crew seats restraints for condition,
security, and operation.
3. Crew seat attenuator for compression — inspect witness
line. If line is not visible, repair attenuator assembly.
4. Visually inspect passenger seats for condition and security.
5. Visually inspect passenger seats restraints for condition
and security.
SCHEDULED INSPECTIONS
5-5. DAILY INSPECTION — PART A (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER