TM 1-1520-238-23
1-392
1.137.
SPECIAL INSPECTION CHECKLIST – continued
Helicopter Serial No.:
Date:
Area
No.
REQUIREMENT
EVERY
Item
Status
Special
Inspection
No.
ALL
33
(cont)
(2) Check wire strike hardware (if applicable).
(cont)
(3) Check main rotor blade electrostatic bonding cables and de-ice wire
harnesses for burned insulation and/or damage.
(4) Check main rotor electrostatic discharge brushes and de-ice harness
brush blocks for erosion and/or damage.
(5) Check main rotor mast for signs of arcing, pitting, and/or damage.
(6) Check surfaces of tail rotor blades and tail rotor assembly; including
links, pitch horn, pitch change swashplate, hubs, forks, and control
linkages for evidence of lightning damage.
(7) Check tail rotor electrostatic bonding cables and de-ice wire
harnesses for burnt insulation and/or damage.
(8) Check tail rotor electrostatic discharge brushes and de-ice harness
brush blocks for erosion and/or damage.
(9) Check flight controls for evidence of lightning damage. Check for
freedom of movement of all flight controls.
(10) Check entire aircraft surface for burns, burn holes, burn streaks, paint
discoloration, lost or eroded metal, torn metal, bulged or delaminated
composite surface pits and punctures, no matter how slight.
(11) Check exposed electrical wiring, including wiring in TADS/PNVS
avionics bays and under main rotor mast aperture fairing.
(12) Check all electrical, AFCS and avionic components, including
antennas, for damage.
(13) Check all hydraulic components, including tubes, hoses, and fittings,
for damage.
(14) Check gravity refueling ports, pressure refueling port, and fuel cell
vents for evidence of arcing and/or damage.
(15) Check APU for damage.
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