Removal of the Fuel Flow Transmitter [IAE]

TASK 73-31-17-000-010-B
Removal of the Fuel Flow Transmitter

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: 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.

CAUTION: DO NOT SHIP OR STORE THE FUEL FLOW TRANSMITTER DRY. IT MUST CONTAIN PROPER FLUID AT ALL TIMES TO PREVENT INTERNAL DAMAGE.

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	CAP - BLANKING
No specific	AR	CONTAINER - CLEAN, APPLICABLE
No specific	AR	WARNING NOTICE(S)
IAE1R18001	1	WRENCH

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V10-103)	material oil

C. Work Zones and Access Panels

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

D. Referenced Information

REFERENCE	DESIGNATION
TASK 70-30-00-918-010-A	Consumable Materials Index
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
Fuel Flow Transmitter
Fuel Flow Transmitter
Fuel Flow Transmitter

3. Job Set-up
Subtask 73-31-17-941-051-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 73-31-17-010-051-A ** ON A/C NOT FOR ALL

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

4. Procedure
Subtask 73-31-17-020-051-A ** ON A/C NOT FOR ALL

A. Removal of the Fuel Flow Transmitter
(1) Disconnect the tube clips.

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

(a) Remove the bolt (11), washer (12) and clip (13) from the clip point at Detail B.
(b) Remove the bolt (14), washer (15), clip (16) and nut (17) from the clip point at Detail C.
(c) Remove the bolt (23), clips (24) and (25), washer (26) and nut (27) from the clip point at Detail E.
(d) Remove the bolt (28), washer (29), clips (30) and (33), raceway (31) and spacer (32) from the clip point at Detail F.
(e) Remove the bolt (36), washer (35) and clip (34) from the clip point at Detail F.
(2) Disconnect the bonding lead.

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

(a) Remove the nut (22), bolt (18) and washers (21) and (19) from the raceway lug at Detail D.
(b) Remove the bonding lead tag (20) from the raceway lug.
(3) Disconnect the electrical connector (54) from the fuel flow transmitter.

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

(4) Remove the fuel outlet tube.

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

(a) Put the CONTAINER - CLEAN, APPLICABLE in position under the fuel flow transmitter.
(b) Remove the three bolts (50) that attach the outlet tube (52) and the bracket (51) to the fuel flow transmitter. Remove the bracket (51).
(c) Using a IAE1R18001 WRENCH or alternative tool to disconnect the union and remove the outlet tube (52) and the sealing ring (53).
(d) Discard the sealing ring (53).
(5) Remove the fuel flow transmitter.

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

(a) Support the fuel flow transmitter and remove the three bolts (46) and the bracket (47).
(b) Remove the fuel flow transmitter.
(c) Remove the sealing ring (49) from the inlet tube (48).
(d) Discard the sealing ring (49).
(e) Fill the fuel flow transmitter with material oil (Material No.V10-103) (Ref. AMM TASK 70-30-00-918-010).

Subtask 73-31-17-620-051-A ** ON A/C NOT FOR ALL

B. Install CAP - BLANKING to all openings.

[Rev.10 from 2021] 2026.04.01 13:01:26 UTC