DOC AIRBUS | AMM A320FStandard Precautions for Maintenance Procedures [CFML]
TASK 70-10-00-910-802-A
Standard Precautions for Maintenance Procedures
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Referenced Information
3. Job Set-up
Subtask 70-10-00-710-050-A
Subtask 70-10-00-020-050-A
[Rev.10 from 2021]
2026.04.01 02:20:47 UTC
Standard Precautions for Maintenance Procedures
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | MAGNET |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP2109) | tape 3M 471 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 70-24-00-910-815-A | Locking Procedures |
| TASK 70-24-00-910-816-A | Precautionary Measures to be taken during Removal/Installation Operations |
Subtask 70-10-00-710-050-A
A. Not Applicable
4. ProcedureSubtask 70-10-00-020-050-A
A. General Instructions for Removal of Parts
(2) Examine all the parts for indications of cracking, scoring, burning or other damage at the time of removal.
(a) Put a tag on any unserviceable parts for subsequent investigation and possible repair.
(3) Examine parts for Foreign Object Damage (FOD)
(4) Foreign Objects
(a) If a part, tool or object falls into the engine, the assembly process must stop until the fallen articles are found. Before you assemble or install any part, make sure that it is fully clean.
(b) If the above equipment is not available, it is possible to use a MAGNET to remove objects if they are magnetic. Attach the MAGNET to a flexible cable with tape 3M 471 (Material No.CP2109) so that it is possible to move it across a larger area.
(5) Do not use safety wire, lockwashers, tablocks, key washers (tab type) or cotter pins again after they are removed. All safety wire and cotter pins must have a tight fit in their holes. Refer to installation of safety wire (Ref. AMM TASK 70-24-00-910-815), installation of key washers (Ref. AMM TASK 70-24-00-910-815) and installation of cotter pins (Ref. AMM TASK 70-24-00-910-815).
(6) Discard all gaskets, packings and rubber parts at each removal. Replace all gaskets, packings and rubber parts with new ones at each installation. Make sure that the new non-metal parts (such as oil seals) show no signs of deterioration from storage. Refer to installation of packing and seals (Ref. AMM TASK 70-24-00-910-816).
(7) If necessary, apply the applicable gasket lubricant to the gasket surfaces to prevent a bond of the gasket to the surfaces of the mating part as specified in the installation task.
(8) Protection of the engine parts
(9) If parts have a layer of corrosion preventive compounds, remove all of this compound and all other unwanted material before installation.
NOTE: Always obey the specific procedures and limits in the specific Aircraft Maintenance Manual (AMM) maintenance tasks.
(1) Put tags and marks on all the parts with their engine locations at the time of removal. This makes sure that the subsequent installation will be correct. (2) Examine all the parts for indications of cracking, scoring, burning or other damage at the time of removal.
(a) Put a tag on any unserviceable parts for subsequent investigation and possible repair.
(3) Examine parts for Foreign Object Damage (FOD)
CAUTION:
WHEN DUST CAPS ARE USED FOR THE PROTECTION OF OPEN LINES AGAINST CONTAMINATION, ALWAYS BE SURE THAT THE CAPS ARE INSTALLED AROUND THE TUBE ENDS AND NOT IN THE TUBE ENDS. THERE CAN BE BLOCKAGE OF THE FLOW THROUGH THE TUBE IF THESE TUBES ARE INSTALLED ACCIDENTALLY WITH DUST CAPS IN THE TUBE ENDS.
CAUTION:
DO NOT PUT TOOLS, FASTENERS, OR OTHER SMALL OBJECTS IN THE AREA BETWEEN THE INNER FAN-EXIT-CASE STRUTS. THESE OBJECTS CAN FALL THROUGH THE BLEED VALVE PORTS, INTO THE ENGINE, AND CAUSE DAMAGE.
(a) Do not let dust, dirt, safety wire, safety cable, nuts, washers or other unwanted material FOD go into the engine. (4) Foreign Objects
(a) If a part, tool or object falls into the engine, the assembly process must stop until the fallen articles are found. Before you assemble or install any part, make sure that it is fully clean.
(b) If the above equipment is not available, it is possible to use a MAGNET to remove objects if they are magnetic. Attach the MAGNET to a flexible cable with tape 3M 471 (Material No.CP2109) so that it is possible to move it across a larger area.
(5) Do not use safety wire, lockwashers, tablocks, key washers (tab type) or cotter pins again after they are removed. All safety wire and cotter pins must have a tight fit in their holes. Refer to installation of safety wire (Ref. AMM TASK 70-24-00-910-815), installation of key washers (Ref. AMM TASK 70-24-00-910-815) and installation of cotter pins (Ref. AMM TASK 70-24-00-910-815).
(6) Discard all gaskets, packings and rubber parts at each removal. Replace all gaskets, packings and rubber parts with new ones at each installation. Make sure that the new non-metal parts (such as oil seals) show no signs of deterioration from storage. Refer to installation of packing and seals (Ref. AMM TASK 70-24-00-910-816).
(7) If necessary, apply the applicable gasket lubricant to the gasket surfaces to prevent a bond of the gasket to the surfaces of the mating part as specified in the installation task.
(8) Protection of the engine parts
CAUTION:
BEFORE YOU USE TOOLS WITH A LAYER OF PROTECTIVE MATERIAL, MAKE SURE THAT THERE IS SUFFICIENT PROTECTIVE MATERIAL TO PREVENT DAMAGE TO ENGINE PARTS.
(a) To give protection to the critical areas of engine parts (such as compressor and turbine disks) against scratches and nicks, tool surfaces which touch these areas must have a protective material cover. (9) If parts have a layer of corrosion preventive compounds, remove all of this compound and all other unwanted material before installation.