External Cleaning [CFMB]

TASK 72-00-00-100-027-A
External Cleaning

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

1. Reason for the Job

NOTE: This task can contribute to fuel savings.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	BRUSH - BRISTLED, SOFT
No specific	AR	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP1039)	acetone
(Material No.CP1041)	isopropyl alcohol
(Material No.CP2010)	white spirit
(Material No.CP2011)	stoddard solvent
(Material No.CP2559)	ardrox 552
(Material No.CP2560)	turco ind 79
(Material No.CP2566)	mag-chem teksol
(Material No.CP2584)	degreasol 99 R
(Material No.CP2656)	mag-chem skysol
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-040-B	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-B	Closing of the Fan Cowl Doors
TASK 78-30-00-081-041-B	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-B	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-36-00-010-040-B	Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-B	Closing of the Thrust Reverser Doors
SPM 702113160001

3. Job Set-up
Subtask 72-00-00-941-066-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).

Subtask 72-00-00-010-084-A ** ON A/C NOT FOR ALL

B. Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR

Subtask 72-00-00-040-064-A ** ON A/C NOT FOR ALL

C. Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-481-041).

Subtask 72-00-00-010-085-A ** ON A/C NOT FOR ALL

D. Open the thrust reverser doors (Ref. AMM TASK 78-36-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR

4. Procedure
Subtask 72-00-00-110-059-A ** ON A/C NOT FOR ALL

A. Engine external cleaning

WARNING: HYDROCARBONS ARE FLAMMABLE AND TOXIC. AVOID PROLONGED CONTACT WITH THE SKIN AND OBSERVE PRECAUTIONS AGAINST FIRE. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.

CAUTION: SOME PLASTICS AND RUBBER-BASE MATERIALS ARE ATTACKED BY HYDROCARBON SOLVENTS.

(1) Hydrocarbon method

stoddard solvent (Material No.CP2011) or acetone (Material No.CP1039) or isopropyl alcohol (Material No.CP1041) or ardrox 552 (Material No.CP2559) or turco ind 79 (Material No.CP2560) or mag-chem teksol (Material No.CP2566) or degreasol 99 R (Material No.CP2584) or mag-chem skysol (Material No.CP2656) or white spirit (Material No.CP2010) is recommended. Light accumulations of grease, oil, gum, and dirt may be removed with hydrocarbon solvent. This method is not effective in removing baked-on oil deposits.

(a) Apply solvent by spraying or using Textile-Lint free Cotton - (Material No.14SBA1) .

NOTE: A BRUSH - BRISTLED, SOFT may be used to remove stubborn accumulations.

(b) Wipe thoroughly to remove accumulation and dry with a Textile-Lint free Cotton - (Material No.14SBA1) or rinse with water.
(2) Steam cleaning method
(a) Steam cleaning is a superficial cleaning process that is useful when it is not desireable to remove paint and surface coatings.

NOTE: Do not use steam cleaning compounds.

(3) Cap all tube ends, manifold openings and air extraction ports to prevent entry of any contaminants or foreign objects.
(a) Handling of the plugs:

WARNING: FIRING TIPS OF IGNITER PLUGS WITH "SPECIAL HANDLING" MARKINGS CONTAIN BERYLLIUM OXIDE. INHALATION OR INGESTION OF, OR CONTACT WITH BERYLLIUM OXYDE DUST IS HARMFUL TO YOUR HEALTH; DO NOT GRIND, CLEAN OR MACHINE. HOLD PLUG BY INPUT CONNECTOR ONLY. TO AVOID PERSONAL INJURY, DO NOT HANDLE FIRING TIP. IF FIRING TIP OF PLUG IS CONTACTED, AVOID TOUCHING OTHER AREAS OF YOUR BODY, AND WASH YOUR HANDS WITH SOAP AND WARM WATER. USED PLUGS SHOULD BE PLACED IN A PLASTIC "ZIP LOC" BAG FOR STORAGE OF SERVICEABLE PARTS AND/OR ACCUMULATION FOR DISPOSAL. SCRAP PLUGS MUST BE PLACED IN A SEALED CONTAINER AND BURIED IN THE EARTH PER RECOMMENDATIONS OF THE NATIONAL INSTITUTE FOR OCCUPATIONAL SAFETY AND HEALTH. LOCAL GOVERNMENT REQUIREMENTS OR LOCAL STANDARDS (IF THEY ARE MORE RESTRICTIVE) WILL BE THE ONLY AUTHORIZATION FOR DEVIATION FROM THESE REQUIREMENTS.

(4) Steam clean the accessible exterior surfaces of the engine in accordance with SPM 702113160001.
To prevent damage to exposed plastic parts, avoid dwelling of steam on such parts to minimize excessive build-up of heat.
(5) Remove covers installed above.

5. Close-up
Subtask 72-00-00-410-083-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser doors (Ref. AMM TASK 78-36-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 72-00-00-440-064-A ** ON A/C NOT FOR ALL

B. Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).

Subtask 72-00-00-410-084-A ** ON A/C NOT FOR ALL

C. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 02:40:55 UTC