Sampling for Analysis (One System Contaminated in Particle)

TASK 12-32-29-281-802-A
Sampling for Analysis (One System Contaminated in Particle)

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

WARNING: MAKE SURE THAT THE CONTROLS AGREE WITH THE POSITION OF THE ITEMS THEY OPERATE BEFORE YOU PRESSURIZE A HYDRAULIC SYSTEM. UNWANTED MOVEMENT OF HYDRAULICALLY OPERATED ITEMS CAN CAUSE SERIOUS INJURY AND/OR DAMAGE.

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 147
ZONE: 195
ZONE: 196

1. Reason for the Job
This procedure is applicable when AMM Task 12-32-29-281-001-A has been done and only 1 hydraulic system has been contaminated in particles.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
147	MAIN GEAR WELL AND HYDRAULIC COMPARTMENT
195	HYDRAULIC COMPT AND FAIRINGS
196	HYDRAULIC COMPT AND FAIRINGS
195BB, 196BB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-12-29-611-001-A	Fill the Hydraulic Fluid Reservoir with a Hand Pump
TASK 12-32-29-281-001-A	Analyze Hydraulic Fluid
TASK 12-32-29-281-803-A	Measure the Fluid Particle Content of Green, Blue and Yellow Systems with Laser Particle Analyser
TASK 12-36-29-600-001-A	Change of the Hydraulic Fluid in the Green Hydraulic System - with Ground Cart Available
TASK 12-36-29-600-002-A	Change of the Hydraulic Fluid in the Yellow Hydraulic System - with Ground Cart Available
TASK 12-36-29-600-003-A	Change of the Hydraulic Fluid in the Blue Hydraulic System - with Ground Cart Available
TASK 12-36-29-600-004-A	Reclamation of the Hydraulic Fluid in the Green Hydraulic System
TASK 12-36-29-600-005-A	Reclamation of the Hydraulic Fluid in the Yellow Hydraulic System
TASK 12-36-29-600-006-A	Reclamation of the Hydraulic Fluid in the Blue Hydraulic System
TASK 12-36-29-615-001-A	Clean the Fluid in the Green Hydraulic System
TASK 12-36-29-615-002-A	Clean the Fluid in the Yellow Hydraulic System
TASK 12-36-29-615-003-A	Clean the Fluid in the Blue Hydraulic System
TASK 27-14-00-710-001-A	Operational Test of the Aileron and Hydraulic Actuation
TASK 27-24-00-710-002-A	Operational Test of the Rudder Servocontrols with Individual Hydraulic System
TASK 27-26-00-710-001-A	Operational Test of the Yaw Damper Actuation
TASK 27-34-00-710-001-A	Operational Test of the Elevator and Hydraulic Actuation
TASK 27-44-00-710-001-A	Operational Test of the Jamming Protection Device of the Trimmable Horizontal Stabilizer Actuator
TASK 27-44-00-710-002-A	Operational Test of the Trimmable Horizontal Stabilizer Actuator with the Individual Hydraulic Systems
TASK 27-44-54-720-001-A	Functional Test of the Pressure-Off Brakes
TASK 27-51-00-710-001-A	Operational Test of the Wing Tip Brake and the Pressure Off Brake
TASK 27-54-00-710-001-A	Operational Test of the Flap System
TASK 27-64-00-710-001-A	Operational Test of the Spoiler Hydraulic Actuation
TASK 27-81-00-710-001-A	Operational Test of the Wing-Tip Brake and the Pressure-Off Brake
TASK 27-84-00-710-001-A	Operational Test of the Slat System
TASK 27-96-00-710-007-A	Operational Check of the Damping Measurement by BITE (Aileron)
TASK 27-96-00-710-008-A	Operational Check of the Damping Measurement by BITE (Elevator)
TASK 29-00-00-910-002-A	Safety Procedures of the Hydraulic System
TASK 29-10-00-863-001-A	Pressurize the Green Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-863-002-A	Pressurize the Yellow Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-863-003-A	Pressurize the Blue Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-863-003-A-01	Pressurize the Blue Hydraulic System with the Blue Electric Pump
TASK 29-10-00-864-001-A	Depressurize the Green Hydraulic System
TASK 29-10-00-864-002-A	Depressurize the Yellow Hydraulic System
TASK 29-10-00-864-003-A	Depressurize the Blue Hydraulic System
TASK 29-11-43-610-010-A	Servicing of the Engine-Pump Case-Drain Filter
TASK 29-11-43-610-041-A	Servicing the Engine-Pump Case-Drain Filter
TASK 29-11-43-610-802-A	Servicing of the Engine-Pump Case-Drain Filter
TASK 29-11-44-610-001-A	Servicing of the LP-Filter
TASK 29-11-45-610-001-A	Servicing of the HP-Filter
TASK 29-12-43-610-001-A	Servicing of the Electric-Pump Case-Drain Filter
TASK 29-12-44-610-001-A	Servicing of the LP-Filter
TASK 29-12-45-610-001-A	Servicing of the HP-Filter
TASK 29-13-43-610-010-A	Servicing of the Engine-Pump Case-Drain Filter
TASK 29-13-43-610-041-A	Servicing of the Engine Pump Case-Drain Filter
TASK 29-13-43-610-802-A	Servicing of the Engine-Pump Case-Drain Filter
TASK 29-13-44-610-001-A	Servicing of the LP-Filter
TASK 29-13-45-610-001-A	Servicing of the HP-Filter
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
Fluid Analysis - Particle content - Flow Chart 3

3. Job Set-up
Subtask 12-32-29-941-051-A

A. Safety Precautions
(1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(2) Put the WARNING NOTICE(S) in position to tell persons not to move:

The flight controls
The lever of the landing gear selector.

Subtask 12-32-29-863-052-A

B. Pressurize the hydraulic system(s)
(1) Pressurize the applicable hydraulic system:

For the Green hydraulic system (Ref. AMM TASK 29-10-00-863-001).
For the Yellow hydraulic system (Ref. AMM TASK 29-10-00-863-002).
For the Blue hydraulic system (Ref. AMM TASK 29-10-00-863-003).

Subtask 12-32-29-010-051-A

C. Get Access
(1) Open the applicable access panel/door:

For the Green hydraulic system, open the left MLG door (Ref. AMM TASK 32-12-00-010-001).
For the Yellow hydraulic system, open access panel 196BB.
For the Blue hydraulic system, open access panel 195BB.

Subtask 12-32-29-866-051-A

D. If you operated the hydraulic systems more than one hour ago

Operate the flight controls for 5 minutes but not over the full travel (Ref. AMM TASK 27-14-00-710-001).

4. Procedure
Subtask 12-32-29-281-057-A

A. Particle Content
(1) Do the one of the recovery action 1, 2, 3 or 4 of the applicable hydraulic system:
(a) Recovery action 1
1 Replace all the Filters (HP, LP & Case Drain) in the contaminated hydraulic systems:

For the Green hydraulic system: (Ref. AMM TASK 29-11-44-610-001), (Ref. AMM TASK 29-11-45-610-001), (Ref. AMM TASK 29-11-43-610-041) or (Ref. AMM TASK 29-11-43-610-010) or (Ref. AMM TASK 29-11-43-610-802).
For the Blue hydraulic system: (Ref. AMM TASK 29-12-44-610-001), (Ref. AMM TASK 29-12-45-610-001), (Ref. AMM TASK 29-12-43-610-001).
For the Yellow hydraulic system: (Ref. AMM TASK 29-13-44-610-001), (Ref. AMM TASK 29-13-45-610-001), (Ref. AMM TASK 29-13-43-610-041) or (Ref. AMM TASK 29-13-43-610-010) or (Ref. AMM TASK 29-13-43-610-802).

2 Clean the hydraulic fluid: (Ref. AMM TASK 12-36-29-615-001), (Ref. AMM TASK 12-36-29-615-002), (Ref. AMM TASK 12-36-29-615-003).
3 Collect fluid sample between 1 and 5 flight cycles after cleaning (Ref. AMM TASK 12-32-29-281-001).

NOTE: The A/C can go back to service for 14 Days after Cleaning until approved fluid sample are received for the Hydraulic System contaminated.

NOTE: The sampling analyse could be done with the Laser Particle Analyser (LPA2) tool.

For the sampling analyse with the LPA2: (Ref. AMM TASK 12-32-29-281-803).

OR

(b) Recovery action 2
1 Replace all the Filters (HP, LP & Case Drain) in the contaminated hydraulic systems:

For the Green hydraulic system: (Ref. AMM TASK 29-11-44-610-001), (Ref. AMM TASK 29-11-45-610-001), (Ref. AMM TASK 29-11-43-610-041) or (Ref. AMM TASK 29-11-43-610-010) or (Ref. AMM TASK 29-11-43-610-802).
For the Blue hydraulic system: (Ref. AMM TASK 29-12-44-610-001), (Ref. AMM TASK 29-12-45-610-001), (Ref. AMM TASK 29-12-43-610-001).
For the Yellow hydraulic system: (Ref. AMM TASK 29-13-44-610-001), (Ref. AMM TASK 29-13-45-610-001), (Ref. AMM TASK 29-13-43-610-041) or (Ref. AMM TASK 29-13-43-610-010) or (Ref. AMM TASK 29-13-43-610-802).

2 Change the hydraulic fluid: (Ref. AMM TASK 12-36-29-600-001), (Ref. AMM TASK 12-36-29-600-002), (Ref. AMM TASK 12-36-29-600-003).
3 Collect fluid sample between 1 and 5 flight cycles after cleaning (Ref. AMM TASK 12-32-29-281-001).

NOTE: The A/C can go back to service for 14 Days after Change until approved fluid sample are received for the Hydraulic System contaminated.

NOTE: The sampling analyse could be done with the LPA2 tool.

For the sampling analyse with the LPA2: (Ref. AMM TASK 12-32-29-281-803).

OR

(c) Recovery action 3
1 Reclaim the hydraulic fluid with the hydraulic ground power cart: (Ref. AMM TASK 12-36-29-600-004), (Ref. AMM TASK 12-36-29-600-005), (Ref. AMM TASK 12-36-29-600-006).
2 Collect immediate sample after the reclaim: (Ref. AMM TASK 12-32-29-281-001).

NOTE: Wait for approved sampling result before DISPATCH the Aircraft.

NOTE: The sampling analyse could be done with the LPA2 tool.

For the sampling analyse with the LPA2: (Ref. AMM TASK 12-32-29-281-803).
OR

(d) Recovery action 4
1 Reclaim the hydraulic fluid with the hydraulic ground power cart: (Ref. AMM TASK 12-36-29-600-004), (Ref. AMM TASK 12-36-29-600-005), (Ref. AMM TASK 12-36-29-600-006).
2 Collect fluid sample between 1 and 5 flight cycles after reclaim: (Ref. AMM TASK 12-32-29-281-001).
3 Do flight control operational check EACH DAY (for max 14 days) until new analysis result are available:
a Do the tests after reclaim each day (step 4.B.)

NOTE: The A/C could go back to service for 14 days after the reclaim until approved result are received.

Subtask 12-32-29-710-051-A

B. Tests After Reclaim

NOTE: The test must be scheduled for each day.

(1) Do the Operational Test for the applicable Hydraulic System:
(a) For the Green Hydraulic System:
1 Do the operational test of the Ailerons:
a Do the operational test of the Ailerons and Hydraulic Actuation (Ref. AMM TASK 27-14-00-710-001).
b Do the operational test of the Damping Measurement (Aileron) (Ref. AMM TASK 27-96-00-710-007).
2 Do the operational test of the Rudder Servocontrols with Individual Hydraulic System (Ref. AMM TASK 27-24-00-710-002).
3 Do the operational test of the Yaw Damper Actuation (Ref. AMM TASK 27-26-00-710-001).
4 Do the operational test of the Elevators:
a Do the operational test of the Elevators and Hydraulic Actuation (Ref. AMM TASK 27-34-00-710-001).
b Do the operational test of the Damping Measurement (Elevator) (Ref. AMM TASK 27-96-00-710-008).
5 Do the operational test of the Spoiler Hydraulic Actuation (Ref. AMM TASK 27-64-00-710-001).
6 Do the operational test of the Trimmable Horizontal Stabilizer (THS):
a Do the operational test of the THS Actuator with the Individual Hydraulic Systems (Ref. AMM TASK 27-44-00-710-002).
b Do the operational test of the THS Actuator Jamming Protection Device (Ref. AMM TASK 27-44-00-710-001).
c Do the functional test of the THS Actuator Pressure Off Brake (Ref. AMM TASK 27-44-54-720-001).
7 Do the operational test of the Flap System:
a Do the operational test of the Flap System (Ref. AMM TASK 27-54-00-710-001).
b Do the operational test of the Wing Tip Brake and Pressure Off Brake (Ref. AMM TASK 27-51-00-710-001).
8 Do the operational test of the Slat System:
a Do the operational test of the Slat System (Ref. AMM TASK 27-84-00-710-001).
b Do the operational test of the Wing Tip Brake and Pressure Off Brake (Ref. AMM TASK 27-81-00-710-001).
(b) For the Blue Hydraulic System:
1 Do the operational test of the Ailerons:
a Do the operational test of the Ailerons and Hydraulic Actuation (Ref. AMM TASK 27-14-00-710-001).
b Do the operational test of the Damping Measurement (Aileron) (Ref. AMM TASK 27-96-00-710-007).
2 Do the operational test of the Rudder Servocontrols with Individual Hydraulic System (Ref. AMM TASK 27-24-00-710-002).
3 Do the operational test of the Yaw Damper Actuation (Ref. AMM TASK 27-26-00-710-001).
4 Do the operational test of the Elevators:
a Do the operational test of the Elevators and Hydraulic Actuation (Ref. AMM TASK 27-34-00-710-001).
b Do the operational test of the Damping Measurement (Elevator) (Ref. AMM TASK 27-96-00-710-008).
5 Do the operational test of the Spoiler Hydraulic Actuation (Ref. AMM TASK 27-64-00-710-001).
6 Do the operational test of the Flap System:
a Do the operational test of the Flap System (Ref. AMM TASK 27-54-00-710-001).
b Do the operational test of the Wing Tip Brake and Pressure Off Brake (Ref. AMM TASK 27-51-00-710-001).
7 Do the operational test of the Slat System:
a Do the operational test of the Slat System (Ref. AMM TASK 27-84-00-710-001).
b Do the operational test of the Wing Tip Brake and Pressure Off Brake (Ref. AMM TASK 27-81-00-710-001).
(c) For the Yellow Hydraulic System:
1 Do the operational test of the Ailerons:
a Do the operational test of the Ailerons and Hydraulic Actuation (Ref. AMM TASK 27-14-00-710-001).
b Do the operational test of the Damping Measurement (Aileron) (Ref. AMM TASK 27-96-00-710-007).
2 Do the operational test of the Rudder Servocontrols with Individual Hydraulic System (Ref. AMM TASK 27-24-00-710-002).
3 Do the operational test of the Yaw Damper Actuation (Ref. AMM TASK 27-26-00-710-001).
4 Do the operational test of the Elevators:
a Do the operational test of the Elevators and Hydraulic Actuation (Ref. AMM TASK 27-34-00-710-001).
b Do the operational test of the Damping Measurement (Elevator) (Ref. AMM TASK 27-96-00-710-008).
5 Do the operational test of the Spoiler Hydraulic Actuation (Ref. AMM TASK 27-64-00-710-001).
6 Do the operational test of the Trimmable Horizontal Stabilizer (THS):
a Do the operational test of the THS Actuator with the Individual Hydraulic Systems (Ref. AMM TASK 27-44-00-710-002).
b Do the operational test of the THS Actuator Jamming Protection Device (Ref. AMM TASK 27-44-00-710-001).
c Do the functional test of the THS Actuator Pressure Off Brake (Ref. AMM TASK 27-44-54-720-001).
7 Do the operational test of the Flap System:
a Do the operational test of the Flap System (Ref. AMM TASK 27-54-00-710-001).
b Do the operational test of the Wing Tip Brake and Pressure Off Brake (Ref. AMM TASK 27-51-00-710-001).

5. Close-up
Subtask 12-32-29-611-051-A

A. Make sure that the fluid level in the hydraulic reservoirs is correct. If necessary, fill the reservoirs (Ref. AMM TASK 12-12-29-611-001).

Subtask 12-32-29-864-051-A

B. Depressurize the hydraulic system(s)
(1) Depressurize the hydraulic system:

For the Green Hydraulic System (Ref. AMM TASK 29-10-00-864-001).
For the Yellow Hydraulic System (Ref. AMM TASK 29-10-00-864-002).
For the Blue Hydraulic System (Ref. AMM TASK 29-10-00-864-003).

Subtask 12-32-29-410-051-A

C. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the applicable access panel/door:

For the Green hydraulic system, close the left MLG door (Ref. AMM TASK 32-12-00-410-001).
For the Yellow hydraulic system, close access door 196BB.
For the Blue hydraulic system, close access door 195BB.

(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.02 06:46:29 UTC