Lightning Strike - BELL HELICOPTER 430 Maintenance Manual

5-50.

LIGHTNING STRIKE

DATA REFERENCE
Chapter 64 and
BHT-430-CR&O-2
CONDITIONAL INSPECTIONS
INSPECTION TASK DESCRIPTION
DATE: __________________W.O. _____________________
FACILITY: _________________ _ ________________________
HELICOPTER S/N: __________ _ ________________________
REGISTRY NO.: ____________ _ ________________________
TOTAL TIME:_______________________________________
SIGNATURE:_______________ _ ________________________
If the helicopter has had a lightning strike, do the following:
If you find a lot of damage in any area of the
airframe, expand the inspection in that area until you
get past the zone of damage.
1. Examine all of the external surfaces of the helicopter.
Closely examine the main rotor blades, main rotor yokes,
transmission, mast assembly, tail rotor blades and hub, tail rotor
gearbox, horizontal stabilizer auxiliary fins and the vertical fin.
Examine the electrical instruments and systems.
2. If you find damage to the helicopter, do the steps that
follow:
a. Remove the main rotor blades. Examine the main rotor
blades. Replace the blades if you find any of the indications that
follow:
(1) Examine the blades for signs of burns. The burn
marks can be very small.
(2) Examine the entire surface of all the blades for
voids and delamination.
NOTE
26 JAN 2007 Rev. 15
BHT-430-MM-2
INITIAL
MECH OTHER
5-00-00
Page 143