W DOC AIRBUS | AMM A320F

Installation of the Oil Filler Plug and/or the Oil Drain Plug in the THS Actuator

TASK 27-44-51-400-002-A
Installation of the Oil Filler Plug and/or the Oil Drain Plug in the THS Actuator

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND THE RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
ZONE: 310
FIN: 9CE
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific
1
CONTAINER - HYDRAULIC FLUID RESISTANT
No specific
1
PLUG - BLANKING
No specific
1
WARNING NOTICE(S)
No specific
Torque wrench: range to between 1.6 and 1.4 m.daN (11.80 and 10.32 lbf.ft ) T
No specific
Torque wrench: range to between 3.3 and 2.7 m.daN (24.34 and 19.91 lbf.ft ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.03ABB1)
Synthetic base Lubricating Oil-Turbine Engine Low Temp. -
(Material No.14QFB1)
Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
310
FUSLG TAIL SECTION AFT OF AFT PRESS BHD
312AR
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
87
O-RING
AIPC 27-44-51-02-040
82
O-RING
AIPC 27-44-51-02-080
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 12-13-27-612-001-A
Oil Replenishment of the THS Actuator
F Oil Filler Plug and Oil Drain Plug
3. Job Set-up
Subtask 27-44-51-860-056-A
A. Aircraft Maintenance Configuration
   (1) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position below the access door 312AR.
   (2) Make sure that the access door 312AR is open.
   (3) Make sure that the WARNING NOTICE(S) are in position in the flight compartment to tell persons not to operate the pitch controls.
   (4) Make sure that the CONTAINER - HYDRAULIC FLUID RESISTANT is in position below the THS actuator, if you install the oil drain plug (86).
Subtask 27-44-51-210-052-A
B. Visual Inspection of the Work Area and the Components
F Oil Filler Plug and Oil Drain Plug
   (1) Visual inspection of the work area.
     (a) Make sure that:
  • the area adjacent to the oil filler plug (81),
  • the area adjacent to the oil drain plug (86)
are clean, not damaged and shows no corrosion.
   (2) Visual inspection of the components.
     (a) Make sure that:
  • the breather cap (80),
  • the adaptor (83),
  • the protective cap (84) complete with the magnetic chip detector (85)
are clean, not damaged and show no corrosion.
     (b) Make sure that the adaptor (83) is correctly installed in the THS actuator (1).
4. Procedure
Subtask 27-44-51-420-052-A
A. Installation of the Oil Filler Plug and/or the Oil Drain Plug
   (1) Clean the component interfaces and the adjacent area.
   (2) Do an inspection of the component interfaces and the adjacent area.
   (3) Installation of the oil filler plug (81).
     (a) Remove the PLUG - BLANKING from the adaptor (83).
     (b) Make sure that the oil filler plug (81) and the adaptor interface (83) are clean.
     (c) Lubricate the new AIPC 27-44-51-02-080 O-RING (82) with the oil Synthetic base Lubricating Oil-Turbine Engine Low Temp. - (Material No.03ABB1) .
     (d) Put the new O-ring (82) in position on the oil filler plug (81).
     (e) Install the oil filler plug (81) in the adaptor (83).
     (f) TORQUE the oil filler plug (81) to between 3.3 and 2.7 m.daN (24.34 and 19.91 lbf.ft ) T.
     (g) Safety the oil filler plug:
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
       1 Safety the oil filler plug (81) with the lockwire 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
     (h) Connect the breather cap (80) to the oil filler plug (81).
   (4) Installation of the oil drain plug (86).
     (a) Remove the PLUG - BLANKING from the opening of the oil drain plug (86) in the Trimmable Horizontal Stabilizer (THS) actuator (1).
     (b) Make sure that the oil drain plug (86) and the plug interface are clean.
     (c) Lubricate the new AIPC 27-44-51-02-040 O-RING (87) with the oil Synthetic base Lubricating Oil-Turbine Engine Low Temp. - (Material No.03ABB1) .
     (d) Put the new O-ring (87) in position on the oil drain plug (86).
     (e) Install the oil drain plug (86) in the THS actuator (1).
     (f) TORQUE the oil drain plug (86) to between 1.6 and 1.4 m.daN (11.80 and 10.32 lbf.ft ) T.
     (g) Safety the oil drain plug:
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
       1 Safety the oil drain plug (86) with the lockwire 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
     (h) Install the protective cap (84), with the magnetic chip detector (85), on the oil drain plug (86).
     (i) Fill the THS actuator (1) with the correct oil to the necessary level (Ref. AMM TASK 12-13-27-612-001).
     (j) Remove the CONTAINER - HYDRAULIC FLUID RESISTANT from below the THS actuator (1).
5. Close-up
Subtask 27-44-51-210-053-A
A. Do a visual check of the THS actuator and make sure that there are no leaks from:
  • the oil filler plug and adaptor,
  • the oil drain plug.
Subtask 27-44-51-410-051-A
B. Close Access
   (1) Remove the warning notices.
   (2) Make sure that the work area is clean and clear of tools and other items.
   (3) Close the access door 312AR.
   (4) Remove the access platform(s).
[Rev.10 from 2021] 2026.03.31 23:51:15 UTC
"Aviabrain" 2025