Page 5-16
Dec/05
Propeller Owner’s Manual
175
INSPECTION AND CHECK
61-00-75
B. Lightning Strike
CAUTION:
ALSO CONSULT ENGINE AND AIRFRAME
MANUFACTURER’S MANUALS. THERE
MAY BE ADDITIONAL REQUIREMENTS
SUCH AS DE-ICE AND ENGINE SYSTEM
CHECKS TO PERFORM AFTER A
PROPELLER LIGHTNING STRIKE.
(1) General
In the event of a propeller lightning strike, an inspection
is required before further flight. It may be permissible
to operate a propeller for an additional ten (10) hours
of operation if the propeller is not severely damaged
and meets the requirements in paragraph 5.B.(2) of
this chapter. Regardless of the outcome of the initial
inspection, the propeller must eventually be removed
from the aircraft, disassembled, evaluated, and/or
repaired by an appropriately licensed propeller repair
facility.
(2) Procedure for Temporary Operation
If temporary additional operation is desired before
propeller removal and disassembly:
(a) Remove the spinner dome and perform visual
inspection of propeller, spinner, and de-ice system
for evidence of significant damage that would require
repair before flight (such as broken de-ice wires or
arcing damage to propeller hub).
CAUTION:
IF THE PROPELLER EXPERIENCES
LIGHTNING STRIKE, THE ALUMINUM
BLADES MUST BE WITHIN
AIRWORTHY LIMITS FOR ANY
ADDITIONAL FLIGHT.
(b) If the only evident damage is minor arcing burns
to the blades, then operation for ten (10) hours is
acceptable before disassembly and inspection.
(c) Perform a functional check of the propeller de-ice
system (if installed) in accordance with aircraft
maintenance manual procedures.
OBSOLETE PROPELLER MODELS. SEE COVER PAGE
WARNINGS AND SERVICE BULLETIN HC-SB-61-331
