Inspection/Check of Foreign Object Damage (FOD) (Bird Strike Included) [CFML]

TASK 72-00-00-200-814-A
Inspection/Check of Foreign Object Damage (FOD) (Bird Strike Included)

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

WARNING: THERE IS A POSSIBLE HEALTH RISK TO PERSONNEL WHO DO MAINTENANCE TASKS AFTER A BIRD STRIKE. THE SAFETY MEASURES THAT FOLLOW ARE RECOMMENDED:

USE DISPOSABLE GLOVES.
USE CUT RESISTANT GLOVES OVER THE DISPOSABLE GLOVES.
USE A DISPOSABLE COVERALL IF THERE IS A RISK OF BODY CONTACT WITH THE BIRD REMAINS (ORGANIC MATTER) DURING FEATHER COLLECTION OR ENGINE CLEANING.
DO NOT USE PRESSURIZED AIR OR WATER TO CLEAN THE PARTS WHICH WERE IN CONTACT WITH THE BIRD.
REMOVE THE BIRD REMAINS AND PUT THEM IN A PLASTIC BAG.
DO NOT TOUCH YOUR FACE, EYES, NOSE, ETC. WITH YOUR GLOVES.
REMOVE THE GLOVES AND THE DISPOSABLE COVERALL AND PUT THEM IN THE SAME PLASTIC BAG AS THE REMAINS. SEAL THE BAG.
DISCARD THE BAG AS YOU DO FOR USUAL GARBAGE.
CAREFULLY WASH YOUR HANDS WITH SOAP AND WATER.

NOTE: In any case, operators and maintenance personnel should comply with the recommendations of the local medical authorities. The requirements of the relevant medical authority take precedence over any CFM guidelines in these matters and their advice must always be sought.

NOTE: Parts of remains can be used to determine the bird species ingested. Contact CFM for further information.

ZONE: 400

1. Reason for the Job
You must do a visual inspection and, when applicable, a borescope inspection when unwanted materials (foreign objects) have gone into the engine.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 1M(3 FT)
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR, 451AL, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR, 461AL, 462AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-710-816-A	Power Assurance Check
TASK 71-13-00-010-803-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A	Closing of the Fan Cowl Doors
TASK 71-13-13-210-801-A	General Visual Inspection of the Fan Cowl Door Latches and Surrounding Structure (150 mm around Latch Fittings)
TASK 71-13-46-210-801-A	General Visual Inspection of Fan Cowl Door Hinges and Surrounding Structure (150 mm (5.91 in.) around Hinge Fittings)
TASK 71-60-41-210-801-A	General Visual Inspection of the Air Intake Cowl (MPD)
TASK 72-21-00-210-803-A	Visual Inspection of the Stage 1 Booster Vane Assembly (PRE SB 72-00-0080)
TASK 72-21-00-210-803-A-01	Visual Inspection of the Stage 1 Booster Vane Assembly and the Rotating Ring Spacer (POST SB 72-00-0080)
TASK 72-21-00-290-802-A	Borescope Inspection of the Booster Blades and Vanes (PRE SB 72-00-0080)
TASK 72-21-00-290-802-A-01	Borescope Inspection of the Booster Blades and Vanes (POST SB 72-00-0080)
TASK 72-21-01-210-802-A	Visual Inspection of the Flow Path Panel
TASK 72-21-02-210-801-A	Visual Inspection of the Booster Flow Splitter
TASK 72-21-03-210-801-A	Visual Inspection of the Flow Path Fairing Half Ring
TASK 72-21-20-210-802-A	Visual Inspection of the Fan Blade
TASK 72-21-40-210-801-A	Visual Inspection of the Front Spinner
TASK 72-21-42-210-801-A	Visual Inspection of the Fan Blade Platform
TASK 72-21-60-210-801-A	Visual Inspection of the Platform Front Shroud
TASK 72-23-01-210-801-A	Visual Inspection of the Fan Case
TASK 72-23-03-210-801-A	Visual Inspection of the Acoustic Shroud
TASK 72-23-04-210-801-A	Visual Inspection of the Aft Acoustical Panel
TASK 72-24-01-210-801-A	Visual Inspection of the Segment Shrouds and Louvers
TASK 72-24-09-210-801-A	Visual Inspection of Flow Path Panels 1 to 4
TASK 72-24-11-210-801-A	Visual Inspection of the Outlet Guide Vane Platforms
TASK 72-24-20-210-801-A	Visual Inspection of the Outlet Guide Vanes (OGVs), Inter OGV Seals and OGV Plugs
TASK 72-24-21-210-801-A	Visual Inspection of the Outlet Guide Vane (OGV) Struts
TASK 72-30-00-290-801-A	Borescope Inspection of the High Pressure Compressor Section
TASK 73-21-15-210-801-A	Visual Inspection of the T12 Sensor
TASK 73-21-20-000-802-A	Removal of the T25 Sensor
TASK 73-21-20-210-802-A	Visual Inspection of the T25 Sensor
TASK 73-21-20-400-802-A	Installation of the T25 Sensor
TASK 78-30-00-040-809-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-30-00-440-809-A	Reactivation of the Thrust Reverser System after Ground Maintenance
TASK 78-36-00-010-806-A	Opening of the Thrust Reverser Cowl Doors
TASK 78-36-00-410-806-A	Closing of the Thrust Reverser Cowl Doors
TASK 79-21-30-210-801-A	Visual Inspection of the SACOC
TSM 77-11-00-810-824	N1 Vibration Exceedance
TSM 77-11-00-810-825	N2 Vibration Exceedance

3. Job Set-up
Subtask 72-00-00-941-209-A

A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Put WARNING NOTICE(S) in position to tell persons not to operate the ENG/MODE selector switch and the ENG/MASTER 1(2) control switch.
(2) On the ENG section of maintenance panel 50VU:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).

Subtask 72-00-00-010-281-A

B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Put an ACCESS PLATFORM 1M(3 FT) in position.

Subtask 72-00-00-040-140-A

C. Deactivation of the Thrust Reverser for Ground Maintenance

WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.

(1) Do the deactivation of the thrust reverser system for ground maintenance (Ref. AMM TASK 78-30-00-040-809).

Subtask 72-00-00-010-282-A

D. Get Access
(1) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-806):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR

4. Procedure
Subtask 72-00-00-210-174-A

CAUTION: IF YOU MOVE THE FAN WHEEL, TURN THE FAN ROTOR COUNTERCLOCKWISE FORWARD LOOKING AFT. IF YOU TURN IT CLOCKWISE FORWARD LOOKING AFT, THERE IS A RISK THAT THE FAN BLADES WILL TOUCH THE ABRADABLE STRIP. THIS CAN CAUSE DAMAGE TO THE FAN BLADES AND THE ABRADABLE STRIP.

A. Visual Inspection

NOTE: The visual inspection must be done without part removal. Refer to the referenced tasks given hereafter to find the inspection criteria and apply these criteria only on the visible parts.

(1) Examine the external area of the nacelle inlet at the point of impact (Ref. AMM TASK 71-60-41-210-801).
(2) If the FOD went through the inlet cowl structure, look for damage to the internal structure.
(3) If there is an indication of engine imbalance, examine the following nacelle components for signs of damage:
(a) Inlet cowl (Ref. AMM TASK 71-60-41-210-801).
(b) Fan cowl hinges and surrounding structure (Ref. AMM TASK 71-13-46-210-801).
(c) Fan cowl latches and surrounding structure (Ref. AMM TASK 71-13-13-210-801).
(4) Examine the external parts of the engine fan. Do the tasks that follow:
(a) Do the visual inspection of the front spinner (Ref. AMM TASK 72-21-40-210-801).
(b) Do the visual inspection of the platform front shroud (Ref. AMM TASK 72-21-60-210-801).
(c) Do the visual inspection of the fan blades (Ref. AMM TASK 72-21-20-210-802).
(d) Do the visual inspection of the fan blade platforms (Ref. AMM TASK 72-21-42-210-801).
(e) Do the visual inspection of the fan case for the abradable flowpath only (Ref. AMM TASK 72-23-01-210-801).
(f) Do the visual inspection of the acoustic shrouds (Ref. AMM TASK 72-23-03-210-801).
(g) Do the visual inspection of the booster flow splitter (Ref. AMM TASK 72-21-02-210-801).
(h) Do the visual inspection of the flow path fairing half ring (Ref. AMM TASK 72-21-03-210-801).
(i) Do the visual inspection of the flow path panel (Ref. AMM TASK 72-21-01-210-802).
(j) Do the visual inspection of the Outlet Guide Vanes (OGVs) and seals (Ref. AMM TASK 72-24-20-210-801).
(k) Do the visual inspection of the OGV struts (Ref. AMM TASK 72-24-21-210-801).
(l) Do the visual inspection of the OGV platforms (Ref. AMM TASK 72-24-11-210-801).
(m) Do the visual inspection of the aft acoustical panel (Ref. AMM TASK 72-23-04-210-801).
(n) Do the visual inspection of the SACOC (Ref. AMM TASK 79-21-30-210-801).
(o) Do the visual inspection of flow path panels 1 to 4 (Ref. AMM TASK 72-24-09-210-801).
(p) Do the visual inspection of the segment shrouds and louvers (Ref. AMM TASK 72-24-01-210-801).
(q) Do the visual inspection of the Low Pressure Compressor (LPC) stage 1 Inlet Guide Vane (IGV) (Ref. AMM TASK 72-21-00-210-803).
(5) Do the visual inspection of the T12 sensor probe (Ref. AMM TASK 73-21-15-210-801).

Subtask 72-00-00-280-080-A

B. The Gaspath Inspection
(1) The FOD or the birdstrike associated with normal engine parameters.

NOTE: It is normal to have fluctuations on engine parameters such as N1, N2 and the Exhaust Gas Temperature (EGT) because of the impact of the bird in the engine flow path. These fluctuations are permitted if there were no engine exceedances and the fluctuations only show for a short time.

(a) Do the step that follows if one or more of these conditions apply:

The FOD or the birdstrike event has resulted in the fan blade, fan blade platform or Low Pressure Compressor (LPC) stage 1 Inlet Guide Vane (IGV) damage beyond serviceable limits.
Evidence of the FOD or the bird debris has entered the booster inlet, i.e. damage or debris on the front spinner, fan blade platform, LPC stage 1 IGV or flow splitter.

NOTE: For a single engine condition, the High Pressure Compressor (HPC) borescope inspection can be deferred for 25 flight hours or 10 cycles (use the first limit to occur), if there is no unserviceable damage to the fan blades, fan blade platforms or LPC stage 1 IGV. For a dual-engine FOD event, this service extension is only permitted on one engine.

1 If you find a damage to LPC stage 1 IGV not in the limits (Ref. AMM TASK 72-21-00-210-803), check all the primary airflow by doing a borescoping inspection of the booster blades (Ref. AMM TASK 72-21-00-290-802).
2 Do the borescope inspection of the HPC through Port C (Stage 1 Blisk LE), Port G (Stage 3 TE and Stage 4 LE) and Port L (Stage 8 TE and Stage 9 LE) (Ref. AMM TASK 72-30-00-290-801).
3 If the FOD or the bird debris is found, inspect the other stages of the HPC (Ref. AMM TASK 72-30-00-290-801).
(2) The FOD associated with abnormal engine parameters.
(a) If ECAM warnings ENG (1)(2) HIGH VIBRATION are displayed, refer to TSM 77-11-00-810-824 TSM 77-11-00-810-825.
(b) If the FOD event was associated with abnormal parameters or with the surge or stall or flameout, do the steps that follow:

NOTE: Abnormal engine parameters mean a mismatch or significant shift on N2, WF or EGT as well as abnormal acceleration and deceleration.

1 Remove, examine and re-install T25 sensor (Ref. AMM TASK 73-21-20-000-802), (Ref. AMM TASK 73-21-20-210-802) and (Ref. AMM TASK 73-21-20-400-802).

NOTE: It is acceptable to examine T25 sensor with a borescope through the LPC booster or the HPC (Port C).
If damage or debris is found T25 sensor must be removed, cleaned and examined for the further damage.

2 Do the borescope inspection of the booster blades (Ref. AMM TASK 72-21-00-290-802).
3 Do the borescope inspection of the HPC blades through Port C (Stage 1 Blisk LE), Port G (Stage 3 TE and Stage 4 LE) and Port L (Stage 8 TE and Stage 9 LE) (Ref. AMM TASK 72-30-00-290-801).
4 If the FOD or the bird debris is found examine the other stages of the HPC (Ref. AMM TASK 72-30-00-290-801).
5 Do the power assurance check (Ref. AMM TASK 71-00-00-710-816).

5. Close-up
Subtask 72-00-00-410-241-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-806):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR

Subtask 72-00-00-440-133-A

B. Do the reactivation of the Thrust Reverser System after Ground Maintenance (Ref. AMM TASK 78-30-00-440-809).

Subtask 72-00-00-410-242-A

C. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 02:50:43 UTC