Propeller Owner’s Manual
147
INSPECTION AND CHECK
61-00-47
Page 5-34
Rev. 17 Sep/20
(c) Make a record of the overspeed/overtorque
event in the propeller logbook, indicating any
corrective action(s) taken.
NOTE: Some aircraft installations have torque
indicator values indicating 100% torque
that are less than the maximum certified
torque for the specific propeller model
as listed in the propeller type certificate
data sheet. If an overtorque occurs
that requires propeller repair station
evaluation, contact Hartzell Propeller
Inc.
Product Support to confirm actual
overtorque percentage.
B. Lightning Strike - Propeller Asssembly
(Rev. 1)
CAUTION 1:
REFER TO THE ENGINE AND AIRFRAME
MANUFACTURER’S MANUALS FOR
ADDITIONAL INSPECTIONS TO
PERFORM AFTER A PROPELLER
LIGHTNING STRIKE.
CAUTION 2: A COMPOSITE BLADE SUSPECTED
OF LIGHTNING STRIKE MUST BE
INSPECTED AND MAY REQUIRE
OVERHAUL.
NOTE:
Lightning usually enters the propeller
through the metal erosion shield or the
stainless steel mesh (if applicable) of a
blade. The charge typically enters at the tip
of the blade and travels through the erosion
shield toward the hub. The charge exits the
erosion shield at the inboard end and enters
the next conductive element in the path.
(1) General
(a) In the event of a propeller lightning strike, an
inspection is required before further flight.
(b) If the propeller meets the requirements of the
“Temporary Operation Inspection” in this section,
10 hours of operation is permitted before propeller
disassembly/inspection must be performed.