INSPECTION AND CHECK
61-00-39
Page 5-5
Rev. 17 Apr/20
Propeller Owner’s Manual
139
2. Post-Flight Checks
CAUTION:
INSTRUCTIONS AND PROCEDURES IN THIS
SECTION MAY INVOLVE CRITICAL PARTS.
REFER TO THE INTRODUCTION CHAPTER
OF THIS MANUAL FOR INFORMATION ABOUT
PROPELLER CRITICAL PARTS. REFER TO
THE ILLUSTRATED PARTS LIST CHAPTER
OF THE APPLICABLE OVERHAUL MANUAL(S)
FOR THE IDENTIFICATION OF SPECIFIC
PROPELLER CRITICAL PARTS.
A. HC-B3TN-3DL/LT10282( )-9.5R propellers installed on
Piaggio P-166 DL3 aircraft
(1) As a result of the “pusher” configuration, propeller
blades on affected aircraft are exposed to hot exhaust
gasses, which makes them more susceptible to erosion
and corrosion. Additional inspections and corrosion
preventative measures are required.
(a) Perform blade cleaning within three days after any
flight.
NOTE: It is recommended to perform blade
cleaning after the last flight of each day.
(b) Blade Cleaning
1 Use a cloth dampened with an approved solvent/
cleaner to thoroughly clean each blade shank
where exposed to engine exhaust and remove
all foreign matter/exhaust residue.
2 Visually inspect for corrosion indications and
paint condition.
3 Paint must be in good condition in the area
exposed to exhaust gasses. Repair and repaint
in accordance with the Maintenance Practices
Chapter of this manual or by an appropriately
licensed propeller repair facility if:
a Any of the underlying aluminum blade is
exposed.
b There are any indications of corrosion, such
as pitting or any other unusual conditions.
