SusiAir PILATUS PORTER PC6, Maintenance Program

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Form ASI-PC6 Sudden Propeller Stoppage Inspection
Reissued: 2
Revision: 1
Date: July 2020 Page 2 of 4
NO. DESCRIPTION TASK NO. MECH. ENG. RII
7) After installation of a repaired/replacement power section on
the serviceable gas generator, run at 80% TO power for ten
minutes. Remove and inspect the main oil filter.
If no metallic debris is found, return the engine to service.
79-20-02 N/A
8) Examine the main oil filter after one week (25 hours minimum, 65
hours maximum). If no metallic debris is found, return to standard
inspection schedule.
N/A
4
Examine the engine mounting (visually and using a straight edge) for
distortion. If the frame is distorted, reject the frame.
N/A
5 Examine the firewall for distortion. N/A
6 Install a new or overhauled propeller. 61-10-01
N/A
7 Install the power plant access panels. 71-10-00 N/A
8 Do the adjustment/test of the engine. 71 -00-00 N/A
PROCEDURE WHEN A PROPELLER STRIKE OCCURS
1 Remove the power plant access panels. 71-10-00 N/A
2
Examine the propeller.
WARNING : WHEN A PROPELLER BLADE IS BENT OR
TWISTED, MAJOR REPAIR WILL BE NECESSARY
AND AN OVERHAUL OF THE PROPELLER MUST BE
DONE.
CAUTION: PROPELLER BLADES MUST BE REPAIRED
IMMEDIATELY AFTER DAMAGE IS FOUND, OR
BLADE FAILURE CAN OCCUR.
Minor damage to the propeller blades can be repairea if the damage
is less than the permitted limits.
61-10-00
N/A
3
Examine the engine, (Ref. P&WC EMM 72-00-00) Propeller strike
causes a blade structural/major damage, or propeller strike on a power
line, or propeller strike at power above FLIGHT-IDLE (Ng above 82%).
NOTE : Blade damage is considered to be structural/major when:
• The blade is loose in the hub
or
• The blade retention component (ball bearings, races, etc.) in the
or
• The blade shell is damage sufficiently to show the spar
or
• The propeller blade spar is bent
or
• The spar composite material is not bonded to its steel
retention component
or
• The blade is bent (out of track or angle)
or
• The blade is bent more than 1 in.
or
• The blade is bent more than 5 in. (composite blade)
or
• The blade tip missing
or
• The blade tip missing material more than 1 in. (composite
blade)
or
• Vibration during operation that was not present before the
event (Ref. AMM).
72-00-00
N/A
a. Remove the power section from service and send it to an approved
P&WC overhaul facility for the inspection required after a propeller
strike. The inspection must be carried out in accordance with
Overhaul Manual instructions (Ref. Light Overhaul).
N/A