SusiAir PILATUS PORTER PC6, Maintenance Program

Page: 194 / 248

Form ASI-PC6-Contamination of Oil With Non-Metallic Foreign Material
Reissued: 2
Revision: 1
Date: July 2020 Page 1 of 1
MAINTENANCE PROGRAM
PILATUS PORTER PC6
Ref. EMM PT6A-27 Chapter 72-00-00
PILATUS PC6 – CONTAMINATION OF OIL WITH NON-METALLIC
FOREIGN MATERIAL
Aircraft
Registration
: ……………. Job Number : …………….
Aircraft S/N : …………….
NO. DESCRIPTION TASK NO. MECH. ENG. RII
NOTE: 1 AGB/RGB internal protective coatings may be released within the engine and appear as flakes 1/64
inch to 3/8 inch in diameter, usually shiny, yellow, brown or green in color, and may or may not be
transparent.
NOTE: 2 Inspect chip detector, main oil filter and AGB scavenge pump screen after approximately 10 hours. If
no debris is found, inspect at 50 hours.
NOTE: 3 If no debris is found at 50 hours, refer to the standard periodic inspection interval for oil filter and chip
detector (Ref. Table 601).
NOTE: 4 If these flakes are found, immediately contact your local P&WC customer support representative.
Send engine to an approved overhaul facility for Light Overhaul. Indicate oil contamination from
released AGB/RGB internal protective coatings.
1.
Remove chip detector from reduction gearbox front housing (Ref.
SERVICING, Oil Change) and scrub scavenge oil strainer sleeve with a
brush to remove any foreign material blocking the screen.
N/A
2. Remove accessory gearbox drain plug(s). N/A
3. Flush oil system (Ref. SERVICING, Oil System Flushing). N/A
4.
Reinstall chip detector and plug(s) and tighten. Refill engine oil tank.
NOTE: Do not lock wire chip detector and drain plug(s) at this time.
N/A
5.
Remove chip detector and inspect scavenge oil strainer sleeve for
residual foreign material accumulated after system flush (Ref. NOTE 1).
N/A
6. Repeat steps (2) thru (5), if required. N/A
7. Reinstall chip detector. Tighten all plugs and chip detector and lockwire. N/A
MAINTENANCE RELEASE
I hereby certify that aircraft parts and component mentioned above has been inspected and maintained in
accordance with the Maintenance Program and meets requirements of applicable Civil Aviation Safety
Regulations that is determined to be in an airworthy condition.
Name : .......................................
Signature : .......................................
Authorization Card’s No. : .......................................
Date : .......................................