Installation of the Fuel Flow Transmitter [IAE]

TASK 73-31-17-400-010-B
Installation of the Fuel Flow Transmitter

WARNING: BE CAREFUL NOT TO GET AIRCRAFT FUEL IN YOUR MOUTH OR IN YOUR EYES. IF YOU GET FUEL ON YOUR SKIN OR ON YOUR CLOTHES, FLUSH IT IMMEDIATELY WITH WATER. IF NECESSARY, GET MEDICAL HELP. AIRCRAFT FUEL IS POISONOUS.

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

FIN: 4010KS ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 45 and 36 lbf.in (0.51 and 0.41 m.daN )
No specific	Torque wrench: range to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
No specific	Torque wrench: range to between 283 and 257 lbf.in (3.20 and 2.90 m.daN )
IAE1R18001	1	WRENCH

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V01-001)	cleaning fluid
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

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

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
53	SEALING RING	AIPC 73-31-17-80-020
49	SEALING RING	AIPC 73-31-17-80-040

E. Referenced Information

REFERENCE	DESIGNATION
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 70-23-13-911-010-A	Procedures for the Installation of Preformed Packings
TASK 70-23-15-912-010-A	Connection of Electrical Connectors
TASK 71-00-00-710-012-B	Test No.3 : Idle Leak Check
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
Fuel Flow Transmitter
Fuel Flow Transmitter
Fuel Flow Transmitter

3. Job Set-up
Subtask 73-31-17-860-051-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).

Subtask 73-31-17-010-053-A ** ON A/C NOT FOR ALL

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

Subtask 73-31-17-110-051-A ** ON A/C NOT FOR ALL

C. Clean Components:
(1) Clean these parts using a Textile-Lint free Cotton - (Material No.14SBA1) made moist with cleaning fluid (Material No.V01-001) :
(a) The inlet and outlet tube mating surfaces on the fuel flow transmitter.
(b) The flange mating surfaces on the inlet and outlet tubes.
(c) The bonding lead tag and the mating surface on the raceway lug.

Subtask 73-31-17-630-051-A ** ON A/C NOT FOR ALL

D. Remove the caps from all openings.

4. Procedure
Subtask 73-31-17-420-051-A ** ON A/C NOT FOR ALL

A. Installation of the Fuel Flow Transmitter
(1) Install the fuel flow transmitter.

Fuel Flow Transmitter ** ON A/C NOT FOR ALL

(a) Install a new AIPC 73-31-17-80-040 SEALING RING (49) on the inlet tube (48) (Ref. AMM TASK 70-23-13-911-010).
(b) Put the fuel flow transmitter in position and install the bracket (47) and the three bolts (46).
(c) Install a new AIPC 73-31-17-80-020 SEALING RING (53) on the outlet tube (52) (Ref. AMM TASK 70-23-13-911-010).
(d) Put the outlet tube (52) in position and install the bracket (51) and the three bolts (50).
(e) TORQUE the bolts (46) and (50) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(f) Connect the union.
(g) With a IAE1R18001 WRENCH or alternative tool, TORQUE the union to between 283 and 257 lbf.in (3.20 and 2.90 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(2) Install the electrical connector (54) (Ref. AMM TASK 70-23-15-912-010).

Fuel Flow Transmitter ** ON A/C NOT FOR ALL

(3) Install the bonding lead.

Fuel Flow Transmitter ** ON A/C NOT FOR ALL

(a) Put the bonding lead tag (20) in position on the raceway lug at Detail D.
(b) Install the washer (19), bolt (18), washer (21) and nut (22).

NOTE: The bonding lead tag must be installed adjacent to the raceway.

(Ref. AMM TASK 70-23-11-911-013).
(4) Install the tube clips.

Fuel Flow Transmitter ** ON A/C NOT FOR ALL

(a) Install the bolt (11), washer (12) and clip (13) on the clip point at Detail B.
(b) Install the bolt (14), washer (15), clip (16) and nut (17) on the clip point at Detail C.
(c) Install the bolt (23), clips (24) and (25), washer (26) and nut (27) on the clip point at Detail E.
(d) Install the bolt (36), washer (35) and clip (34) on the clip point at Detail F.
(e) Install the bolt (28), washer (29), clips (30) and (33), raceway (31) and spacer (32) on the clip point at Detail F.
(f) TORQUE the nuts (17) and (27) and the bolts (11), (28) and (36) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN )

(Ref. AMM TASK 70-23-11-911-013).

5. Close-up
Subtask 73-31-17-410-051-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 fan cowls (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(3) Remove the WARNING NOTICE(S).

Subtask 73-31-17-790-051-A ** ON A/C NOT FOR ALL

B. Test Requirements:
(1) On the upper ECAM DU, check if Fuel Flow Indication is available.
(2) Do an idle leak check (Ref. AMM TASK 71-00-00-710-012).

[Rev.10 from 2021] 2026.04.01 03:01:41 UTC