BHT-205A1-MM-1
5-00-00
5 JUL 2016 Rev. 9
Page 129
Export Classification C, ECCN EAR99
5.
When established lightning has struck helicopter,
inspections of electrical and instrument systems which follow
are mandatory to ensure safety of flight:
a.
Inspect all electrical wiring, bundles, and connectors for
burning or electrical arcing. Unplug all connectors and inspect
pins and housing for electrical arcing or burning. Inspect interior
of all circuit breaker panels for burning or electrical arcing.
Replace any wires, connectors, or circuit breakers found to be
damaged.
NOTE
Do not test chip detectors for magnetization. If
transmission or gearbox magnetic readings are
greater than 1 gauss near chip detector, remove chip
detector from housing and repeat test.
b.
Inspect main rotor blade and control links, transmission
system, driveshafts, gearboxes, and tailboom structure for
magnetization. Using a magnetometer with a range no larger
than ±5 gauss, place arrow or red dot (depending on
magnetometer model) within 0.5 inch (12.7 mm) of item being
checked and point it directly at item. If any items or components
have a reading greater than 1 gauss, those items shall be
degaussed.
c.
Remove and bench test voltage regulator(s).
Operationally check DC generator, starter-generator, and
inverter(s) for proper operation. Visually inspect generator,
starter-generator, and inverter(s) for burns or electrical arcing. If
damaged, remove for internal inspection and bench test.
d.
Perform operational check of bussing system.
e.
Inspect transmission and tail rotor and intermediate
gearbox chip detectors for proper operation. Remove chip
detectors found inoperative.
f.
Perform operational check of interior and exterior
lighting system. Replace lamps, bulbs, and lighting assemblies
as required.
CONDITIONAL INSPECTIONS
5-42.
LIGHTNING STRIKES (CONT)
DATA REFERENCE
INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
Содержание 205A-1
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