Removal of the Wing-Tank Fuel-Quantity Probes

TASK 28-42-15-000-005-A
Removal of the Wing-Tank Fuel-Quantity Probes

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

ZONE: 540
ZONE: 640
FIN: 21QT1 ** ON A/C NOT FOR ALL
FIN: 21QT2 ** ON A/C NOT FOR ALL
FIN: 23QT1 ** ON A/C NOT FOR ALL
FIN: 23QT2 ** ON A/C NOT FOR ALL
FIN: 25QT1 ** ON A/C NOT FOR ALL
FIN: 25QT2 ** ON A/C NOT FOR ALL
FIN: 26QT1 ** ON A/C NOT FOR ALL
FIN: 26QT2 ** ON A/C NOT FOR ALL
FIN: 27QT1 ** ON A/C NOT FOR ALL
FIN: 27QT2 ** ON A/C NOT FOR ALL
FIN: 28QT1 ** ON A/C NOT FOR ALL
FIN: 28QT2 ** ON A/C NOT FOR ALL
FIN: 29QT1 ** ON A/C NOT FOR ALL
FIN: 29QT2 ** ON A/C NOT FOR ALL
FIN: 30QT1 ** ON A/C NOT FOR ALL
FIN: 30QT2 ** ON A/C NOT FOR ALL
FIN: 34QT1 ** ON A/C NOT FOR ALL
FIN: 34QT2 ** ON A/C NOT FOR ALL
FIN: 54QT1 ** ON A/C NOT FOR ALL
FIN: 54QT2 ** ON A/C NOT FOR ALL
FIN: 56QT1 ** ON A/C NOT FOR ALL
FIN: 56QT2 ** ON A/C NOT FOR ALL
FIN: 59QT1 ** ON A/C NOT FOR ALL
FIN: 59QT2 ** ON A/C NOT FOR ALL
FIN: 60QT1 ** ON A/C NOT FOR ALL
FIN: 60QT2 ** ON A/C NOT FOR ALL
FIN: 61QT1 ** ON A/C NOT FOR ALL
FIN: 61QT2 ** 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	ACCESS PLATFORM 4M (13 FT)
No specific	1	ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
98D57004013000	1	HOOK-COVER (RIB 2 SURGE DOORS)
98D57004014000	1	HOOK-COVER (RIB2-SURGE DOORS)
FOR [23QT1] (PROBE-FUEL QTY NO 3, RIB 2-3 L WNG TK INR GROUP A)
FOR [23QT2] (PROBE-FUEL QTY NO 3, RIB 2-3 R WNG TK INR GROUP A)
FOR [25QT1] (PROBE-FUEL QTY NO 5, RIB 2-3 L WNG TK INR GROUP A)
FOR [25QT2] (PROBE-FUEL QTY NO 5, RIB 2-3 R WNG TK INR GROUP A)
FOR [26QT1] (PROBE-FUEL QTY NO 6, RIB 3-4 L WNG TK INR GROUP B)
FOR [26QT2] (PROBE-FUEL QTY NO 6, RIB 3-4 R WNG TK INR GROUP B)
FOR [27QT1] (PROBE-FUEL QTY NO 7, RIB 6-7 L WNG TK INR GROUP A)
FOR [27QT2] (PROBE-FUEL QTY NO 7, RIB 6-7 R WNG TK INR GROUP A)
FOR [28QT1] (PROBE-FUEL QTY NO 8, RIB 6-7 L WNG TK INR GROUP B)
FOR [28QT2] (PROBE-FUEL QTY NO 8, RIB 6-7 R WNG TK INR GROUP B)
FOR [29QT1] (PROBE-FUEL QTY NO 9, RIB 9-10 L WNG TK INR GROUP A)
FOR [29QT2] (PROBE-FUEL QTY NO 9, RIB 9-10 R WNG TK INR GROUP A)
FOR [30QT1] (PROBE-FUEL QTY NO 10, RIB 11-12 L WNG TK INR GROUP B)
FOR [30QT2] (PROBE-FUEL QTY NO 10, RIB 11-12 R WNG TK INR GROUP B)
FOR [34QT1] (PROBE-FUEL QTY NO 14, RIB 20-21 L WNG TK OUTR GROUPB)
FOR [34QT2] (PROBE-FUEL QTY NO 14, RIB 20-21 R WNG TK OUTR GROUPB)
FOR [56QT1] (PROBE-FQI NO 4, RIB 2-3 L WNG TK GROUP B)
FOR [56QT2] (PROBE-FQI NO 4, RIB 2-3 R WNG TK GROUP B)
FOR [59QT1] (PROBE-FQI NO 11, RIB 13-14 L WNG TK GROUP A)
FOR [59QT2] (PROBE-FQI NO 11, RIB 13-14 R WNG TK GROUP A)
FOR [60QT1] (PROBE-FQI NO 12, RIB 16-17 L WNG TK GROUP B)
FOR [60QT2] (PROBE-FQI NO 12, RIB 16-17 R WNG TK GROUP B)
FOR [61QT1] (PROBE-FQI NO 13, RIB 18-19 L WNG TK GROUP A)
FOR [61QT2] (PROBE-FQI NO 13, RIB 18-19 R WNG TK GROUP A)
No specific	AR	CAP - BLANKING

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
540	FUEL TANK
640	FUEL TANK
540AZ, 540BZ, 640AZ, 640BZ
FOR [21QT1] (PROBE-FUEL QTY NO 1, RIB 1-2 L WNG TK INR GROUP A)
FOR [23QT1] (PROBE-FUEL QTY NO 3, RIB 2-3 L WNG TK INR GROUP A)
FOR [25QT1] (PROBE-FUEL QTY NO 5, RIB 2-3 L WNG TK INR GROUP A)
FOR [26QT1] (PROBE-FUEL QTY NO 6, RIB 3-4 L WNG TK INR GROUP B)
FOR [54QT1] (PROBE-FQI NO 2 AND TEMP, RIB 1-2 L WNG TK GROUP B)
FOR [56QT1] (PROBE-FQI NO 4, RIB 2-3 L WNG TK GROUP B)
540AB
FOR [21QT2] (PROBE-FUEL QTY NO 1, RIB 1-2 R WNG TK INR GROUP A)
FOR [23QT2] (PROBE-FUEL QTY NO 3, RIB 2-3 R WNG TK INR GROUP A)
FOR [25QT2] (PROBE-FUEL QTY NO 5, RIB 2-3 R WNG TK INR GROUP A)
FOR [26QT2] (PROBE-FUEL QTY NO 6, RIB 3-4 R WNG TK INR GROUP B)
FOR [54QT2] (PROBE-FQI NO 2 AND TEMP, RIB 1-2 R WNG TK GROUP B)
FOR [56QT2] (PROBE-FQI NO 4, RIB 2-3 R WNG TK GROUP B)
640AB
FOR [27QT1] (PROBE-FUEL QTY NO 7, RIB 6-7 L WNG TK INR GROUP A)
FOR [28QT1] (PROBE-FUEL QTY NO 8, RIB 6-7 L WNG TK INR GROUP B)
540BB
FOR [27QT2] (PROBE-FUEL QTY NO 7, RIB 6-7 R WNG TK INR GROUP A)
FOR [28QT2] (PROBE-FUEL QTY NO 8, RIB 6-7 R WNG TK INR GROUP B)
640BB
FOR [29QT1] (PROBE-FUEL QTY NO 9, RIB 9-10 L WNG TK INR GROUP A)
540DB
FOR [29QT2] (PROBE-FUEL QTY NO 9, RIB 9-10 R WNG TK INR GROUP A)
640DB
FOR [30QT1] (PROBE-FUEL QTY NO 10, RIB 11-12 L WNG TK INR GROUP B)
540FB
FOR [30QT2] (PROBE-FUEL QTY NO 10, RIB 11-12 R WNG TK INR GROUP B)
640FB
FOR [34QT1] (PROBE-FUEL QTY NO 14, RIB 20-21 L WNG TK OUTR GROUPB)
540QB
FOR [34QT2] (PROBE-FUEL QTY NO 14, RIB 20-21 R WNG TK OUTR GROUPB)
640QB
FOR [59QT1] (PROBE-FQI NO 11, RIB 13-14 L WNG TK GROUP A)
540HB
FOR [59QT2] (PROBE-FQI NO 11, RIB 13-14 R WNG TK GROUP A)
640HB
FOR [60QT1] (PROBE-FQI NO 12, RIB 16-17 L WNG TK GROUP B)
540LB
FOR [60QT2] (PROBE-FQI NO 12, RIB 16-17 R WNG TK GROUP B)
640LB
FOR [61QT1] (PROBE-FQI NO 13, RIB 18-19 L WNG TK GROUP A)
540NB
FOR [61QT2] (PROBE-FQI NO 13, RIB 18-19 R WNG TK GROUP A)
640NB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 28-10-00-910-001-A	Safety Procedures When You Do Work in a Fuel Tank
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 28-25-00-650-001-A	Pressure Defuel
TASK 28-25-00-650-003-A	To Drain Remaining Fuel from the Wing Tanks and the Center Tank
TASK 28-25-00-650-003-A-01	To Drain Remaining Fuel from the Wing Tanks and the Center Tank
TASK 57-27-11-000-001-A	Removal of the Access Panel
TASK 57-27-11-000-002-A	Removal of the Access Panel
TASK 57-27-12-000-002-A	Removal of the Rib 2 Access Panel 540AZ(640AZ) or 540BZ(640BZ)
Wing Tank Probes - Location
FOR [21QT1] (PROBE-FUEL QTY NO 1, RIB 1-2 L WNG TK INR GROUP A)
FOR [21QT2] (PROBE-FUEL QTY NO 1, RIB 1-2 R WNG TK INR GROUP A)
Fuel Quantity Probe 21QT1(21QT2) - Detail
FOR [21QT1] (PROBE-FUEL QTY NO 1, RIB 1-2 L WNG TK INR GROUP A)
FOR [23QT1] (PROBE-FUEL QTY NO 3, RIB 2-3 L WNG TK INR GROUP A)
FOR [25QT1] (PROBE-FUEL QTY NO 5, RIB 2-3 L WNG TK INR GROUP A)
FOR [26QT1] (PROBE-FUEL QTY NO 6, RIB 3-4 L WNG TK INR GROUP B)
FOR [54QT1] (PROBE-FQI NO 2 AND TEMP, RIB 1-2 L WNG TK GROUP B)
FOR [56QT1] (PROBE-FQI NO 4, RIB 2-3 L WNG TK GROUP B)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-001-A	Removal of the Access Panel
FOR [21QT2] (PROBE-FUEL QTY NO 1, RIB 1-2 R WNG TK INR GROUP A)
FOR [23QT2] (PROBE-FUEL QTY NO 3, RIB 2-3 R WNG TK INR GROUP A)
FOR [25QT2] (PROBE-FUEL QTY NO 5, RIB 2-3 R WNG TK INR GROUP A)
FOR [26QT2] (PROBE-FUEL QTY NO 6, RIB 3-4 R WNG TK INR GROUP B)
FOR [54QT2] (PROBE-FQI NO 2 AND TEMP, RIB 1-2 R WNG TK GROUP B)
FOR [56QT2] (PROBE-FQI NO 4, RIB 2-3 R WNG TK GROUP B)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-001-A	Removal of the Access Panel
FOR [23QT1] (PROBE-FUEL QTY NO 3, RIB 2-3 L WNG TK INR GROUP A)
FOR [23QT2] (PROBE-FUEL QTY NO 3, RIB 2-3 R WNG TK INR GROUP A)
FOR [25QT1] (PROBE-FUEL QTY NO 5, RIB 2-3 L WNG TK INR GROUP A)
FOR [25QT2] (PROBE-FUEL QTY NO 5, RIB 2-3 R WNG TK INR GROUP A)
FOR [26QT1] (PROBE-FUEL QTY NO 6, RIB 3-4 L WNG TK INR GROUP B)
FOR [26QT2] (PROBE-FUEL QTY NO 6, RIB 3-4 R WNG TK INR GROUP B)
FOR [27QT1] (PROBE-FUEL QTY NO 7, RIB 6-7 L WNG TK INR GROUP A)
FOR [27QT2] (PROBE-FUEL QTY NO 7, RIB 6-7 R WNG TK INR GROUP A)
FOR [28QT1] (PROBE-FUEL QTY NO 8, RIB 6-7 L WNG TK INR GROUP B)
FOR [28QT2] (PROBE-FUEL QTY NO 8, RIB 6-7 R WNG TK INR GROUP B)
FOR [29QT1] (PROBE-FUEL QTY NO 9, RIB 9-10 L WNG TK INR GROUP A)
FOR [29QT2] (PROBE-FUEL QTY NO 9, RIB 9-10 R WNG TK INR GROUP A)
FOR [30QT1] (PROBE-FUEL QTY NO 10, RIB 11-12 L WNG TK INR GROUP B)
FOR [30QT2] (PROBE-FUEL QTY NO 10, RIB 11-12 R WNG TK INR GROUP B)
FOR [34QT1] (PROBE-FUEL QTY NO 14, RIB 20-21 L WNG TK OUTR GROUPB)
FOR [34QT2] (PROBE-FUEL QTY NO 14, RIB 20-21 R WNG TK OUTR GROUPB)
FOR [56QT1] (PROBE-FQI NO 4, RIB 2-3 L WNG TK GROUP B)
FOR [56QT2] (PROBE-FQI NO 4, RIB 2-3 R WNG TK GROUP B)
FOR [59QT1] (PROBE-FQI NO 11, RIB 13-14 L WNG TK GROUP A)
FOR [59QT2] (PROBE-FQI NO 11, RIB 13-14 R WNG TK GROUP A)
FOR [60QT1] (PROBE-FQI NO 12, RIB 16-17 L WNG TK GROUP B)
FOR [60QT2] (PROBE-FQI NO 12, RIB 16-17 R WNG TK GROUP B)
FOR [61QT1] (PROBE-FQI NO 13, RIB 18-19 L WNG TK GROUP A)
FOR [61QT2] (PROBE-FQI NO 13, RIB 18-19 R WNG TK GROUP A)
Fuel Quantity Probes, Ribs 2 thru 21 - Detail
FOR [27QT1] (PROBE-FUEL QTY NO 7, RIB 6-7 L WNG TK INR GROUP A)
FOR [28QT1] (PROBE-FUEL QTY NO 8, RIB 6-7 L WNG TK INR GROUP B)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-001-A	Removal of the Access Panel
FOR [27QT2] (PROBE-FUEL QTY NO 7, RIB 6-7 R WNG TK INR GROUP A)
FOR [28QT2] (PROBE-FUEL QTY NO 8, RIB 6-7 R WNG TK INR GROUP B)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-001-A	Removal of the Access Panel
FOR [29QT1] (PROBE-FUEL QTY NO 9, RIB 9-10 L WNG TK INR GROUP A)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-001-A	Removal of the Access Panel
FOR [29QT2] (PROBE-FUEL QTY NO 9, RIB 9-10 R WNG TK INR GROUP A)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-001-A	Removal of the Access Panel
FOR [30QT1] (PROBE-FUEL QTY NO 10, RIB 11-12 L WNG TK INR GROUP B)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-001-A	Removal of the Access Panel
FOR [30QT2] (PROBE-FUEL QTY NO 10, RIB 11-12 R WNG TK INR GROUP B)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-001-A	Removal of the Access Panel
FOR [34QT1] (PROBE-FUEL QTY NO 14, RIB 20-21 L WNG TK OUTR GROUPB)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-002-A	Removal of the Access Panel
FOR [34QT2] (PROBE-FUEL QTY NO 14, RIB 20-21 R WNG TK OUTR GROUPB)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-002-A	Removal of the Access Panel
FOR [54QT1] (PROBE-FQI NO 2 AND TEMP, RIB 1-2 L WNG TK GROUP B)
FOR [54QT2] (PROBE-FQI NO 2 AND TEMP, RIB 1-2 R WNG TK GROUP B)
Fuel Quantity Probe 54QT1(54QT2) - Detail
FOR [59QT1] (PROBE-FQI NO 11, RIB 13-14 L WNG TK GROUP A)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-002-A	Removal of the Access Panel
FOR [59QT2] (PROBE-FQI NO 11, RIB 13-14 R WNG TK GROUP A)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-002-A	Removal of the Access Panel
FOR [60QT1] (PROBE-FQI NO 12, RIB 16-17 L WNG TK GROUP B)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-002-A	Removal of the Access Panel
FOR [60QT2] (PROBE-FQI NO 12, RIB 16-17 R WNG TK GROUP B)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-002-A	Removal of the Access Panel
FOR [61QT1] (PROBE-FQI NO 13, RIB 18-19 L WNG TK GROUP A)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-002-A	Removal of the Access Panel
FOR [61QT2] (PROBE-FQI NO 13, RIB 18-19 R WNG TK GROUP A)
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 57-27-11-000-002-A	Removal of the Access Panel

3. Job Set-up
Subtask 28-42-15-941-058-A ** ON A/C NOT FOR ALL

A. Safety Precautions

WARNING: BEFORE YOU DO WORK IN OR NEAR A FUEL TANK, MAKE SURE THAT YOU OBEY ALL THE SAFETY PROCEDURES. THIS WILL PREVENT INJURY TO PERSONS AND/OR DAMAGE TO THE AIRCRAFT.

(1) You must obey the fuel safety procedures (Ref. AMM TASK 28-10-00-910-001) when you do work in a fuel tank.
(2) Put the SAFETY BARRIER(S) in position.

Subtask 28-42-15-650-051-A ** ON A/C NOT FOR ALL

B. Fuel Configuration
(1) Defuel the applicable fuel tank (Ref. AMM TASK 28-25-00-650-001).
(2) Drain the remaining fuel from the applicable fuel tank (Ref. AMM TASK 28-25-00-650-003).

Subtask 28-42-15-865-062-A ** ON A/C NOT FOR ALL

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FUEL/FQI/CHAN/1	1QT	A13
** ON A/C NOT FOR ALL
121VU	FUEL/FQI/CHANNEL/1 AND 2	8QT	L26
** ON A/C NOT FOR ALL
121VU	FUEL/FQI/CHAN/2	2QT	M27
** ON A/C NOT FOR ALL
121VU	FUEL/FQI/CHANNEL/1 AND 2	8QT	L25

Subtask 28-42-15-010-059-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT) in position below the applicable access panel.
(2) Remove the applicable access panel (Ref. AMM TASK 28-10-00-910-002), (Ref. AMM TASK 57-27-11-000-001) or (Ref. AMM TASK 57-27-11-000-002):
(a) FOR [21QT1] (PROBE-FUEL QTY NO 1, RIB 1-2 L WNG TK INR GROUP A), [23QT1] (PROBE-FUEL QTY NO 3, RIB 2-3 L WNG TK INR GROUP A), [25QT1] (PROBE-FUEL QTY NO 5, RIB 2-3 L WNG TK INR GROUP A), [26QT1] (PROBE-FUEL QTY NO 6, RIB 3-4 L WNG TK INR GROUP B), [54QT1] (PROBE-FQI NO 2 AND TEMP, RIB 1-2 L WNG TK GROUP B), [56QT1] (PROBE-FQI NO 4, RIB 2-3 L WNG TK GROUP B)
remove 540AB.
(b) FOR [27QT1] (PROBE-FUEL QTY NO 7, RIB 6-7 L WNG TK INR GROUP A), [28QT1] (PROBE-FUEL QTY NO 8, RIB 6-7 L WNG TK INR GROUP B)
remove 540BB.
(c) FOR [29QT1] (PROBE-FUEL QTY NO 9, RIB 9-10 L WNG TK INR GROUP A)
remove 540DB.
(d) FOR [30QT1] (PROBE-FUEL QTY NO 10, RIB 11-12 L WNG TK INR GROUP B)
remove 540FB.
(e) FOR [34QT1] (PROBE-FUEL QTY NO 14, RIB 20-21 L WNG TK OUTR GROUPB)
remove 540QB.
(f) FOR [59QT1] (PROBE-FQI NO 11, RIB 13-14 L WNG TK GROUP A)
remove 540HB.
(g) FOR [60QT1] (PROBE-FQI NO 12, RIB 16-17 L WNG TK GROUP B)
remove 540LB.
(h) FOR [61QT1] (PROBE-FQI NO 13, RIB 18-19 L WNG TK GROUP A)
remove 540NB.
(i) FOR [21QT2] (PROBE-FUEL QTY NO 1, RIB 1-2 R WNG TK INR GROUP A), [23QT2] (PROBE-FUEL QTY NO 3, RIB 2-3 R WNG TK INR GROUP A), [25QT2] (PROBE-FUEL QTY NO 5, RIB 2-3 R WNG TK INR GROUP A), [26QT2] (PROBE-FUEL QTY NO 6, RIB 3-4 R WNG TK INR GROUP B), [54QT2] (PROBE-FQI NO 2 AND TEMP, RIB 1-2 R WNG TK GROUP B), [56QT2] (PROBE-FQI NO 4, RIB 2-3 R WNG TK GROUP B)
remove 640AB.
(j) FOR [27QT2] (PROBE-FUEL QTY NO 7, RIB 6-7 R WNG TK INR GROUP A), [28QT2] (PROBE-FUEL QTY NO 8, RIB 6-7 R WNG TK INR GROUP B)
remove 640BB.
(k) FOR [29QT2] (PROBE-FUEL QTY NO 9, RIB 9-10 R WNG TK INR GROUP A)
remove 640DB.
(l) FOR [30QT2] (PROBE-FUEL QTY NO 10, RIB 11-12 R WNG TK INR GROUP B)
remove 640FB.
(m) FOR [34QT2] (PROBE-FUEL QTY NO 14, RIB 20-21 R WNG TK OUTR GROUPB)
remove 640QB.
(n) FOR [59QT2] (PROBE-FQI NO 11, RIB 13-14 R WNG TK GROUP A)
remove 640HB.
(o) FOR [60QT2] (PROBE-FQI NO 12, RIB 16-17 R WNG TK GROUP B)
remove 640LB.
(p) FOR [61QT2] (PROBE-FQI NO 13, RIB 18-19 R WNG TK GROUP A)
remove 640NB.
(3) Safety open the spring-loaded surge door 540AZ (640AZ) with the 98D57004013000 HOOK-COVER (RIB 2 SURGE DOORS).
(4) Safety open the spring-loaded surge door 540BZ (640BZ) with the 98D57004014000 HOOK-COVER (RIB2-SURGE DOORS).

Subtask 28-42-15-010-059-C ** ON A/C NOT FOR ALL

D. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the applicable zone 540 (640).
(2) Remove the applicable access panels that follow:
(a) FOR [21QT1] (PROBE-FUEL QTY NO 1, RIB 1-2 L WNG TK INR GROUP A), [23QT1] (PROBE-FUEL QTY NO 3, RIB 2-3 L WNG TK INR GROUP A), [25QT1] (PROBE-FUEL QTY NO 5, RIB 2-3 L WNG TK INR GROUP A), [26QT1] (PROBE-FUEL QTY NO 6, RIB 3-4 L WNG TK INR GROUP B), [54QT1] (PROBE-FQI NO 2 AND TEMP, RIB 1-2 L WNG TK GROUP B), [56QT1] (PROBE-FQI NO 4, RIB 2-3 L WNG TK GROUP B)
Remove 540AB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-001).
(b) FOR [27QT1] (PROBE-FUEL QTY NO 7, RIB 6-7 L WNG TK INR GROUP A), [28QT1] (PROBE-FUEL QTY NO 8, RIB 6-7 L WNG TK INR GROUP B)
Remove 540BB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-001).
(c) FOR [29QT1] (PROBE-FUEL QTY NO 9, RIB 9-10 L WNG TK INR GROUP A)
Remove 540DB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-001).
(d) FOR [30QT1] (PROBE-FUEL QTY NO 10, RIB 11-12 L WNG TK INR GROUP B)
Remove 540FB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-001).
(e) FOR [34QT1] (PROBE-FUEL QTY NO 14, RIB 20-21 L WNG TK OUTR GROUPB)
Remove 540QB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-002).
(f) FOR [59QT1] (PROBE-FQI NO 11, RIB 13-14 L WNG TK GROUP A)
Remove 540HB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-002).
(g) FOR [60QT1] (PROBE-FQI NO 12, RIB 16-17 L WNG TK GROUP B)
Remove 540LB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-002).
(h) FOR [61QT1] (PROBE-FQI NO 13, RIB 18-19 L WNG TK GROUP A)
Remove 540NB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-002).
(i) FOR [21QT2] (PROBE-FUEL QTY NO 1, RIB 1-2 R WNG TK INR GROUP A), [23QT2] (PROBE-FUEL QTY NO 3, RIB 2-3 R WNG TK INR GROUP A), [25QT2] (PROBE-FUEL QTY NO 5, RIB 2-3 R WNG TK INR GROUP A), [26QT2] (PROBE-FUEL QTY NO 6, RIB 3-4 R WNG TK INR GROUP B), [54QT2] (PROBE-FQI NO 2 AND TEMP, RIB 1-2 R WNG TK GROUP B), [56QT2] (PROBE-FQI NO 4, RIB 2-3 R WNG TK GROUP B)
Remove 640AB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-001).
(j) FOR [27QT2] (PROBE-FUEL QTY NO 7, RIB 6-7 R WNG TK INR GROUP A), [28QT2] (PROBE-FUEL QTY NO 8, RIB 6-7 R WNG TK INR GROUP B)
Remove 640BB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-001).
(k) FOR [29QT2] (PROBE-FUEL QTY NO 9, RIB 9-10 R WNG TK INR GROUP A)
Remove 640DB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-001).
(l) FOR [30QT2] (PROBE-FUEL QTY NO 10, RIB 11-12 R WNG TK INR GROUP B)
Remove 640FB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-001).
(m) FOR [34QT2] (PROBE-FUEL QTY NO 14, RIB 20-21 R WNG TK OUTR GROUPB)
Remove 640QB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-002).
(n) FOR [59QT2] (PROBE-FQI NO 11, RIB 13-14 R WNG TK GROUP A)
Remove 640HB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-002).
(o) FOR [60QT2] (PROBE-FQI NO 12, RIB 16-17 R WNG TK GROUP B)
Remove 640LB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-002).
(p) FOR [61QT2] (PROBE-FQI NO 13, RIB 18-19 R WNG TK GROUP A)
Remove 640NB (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-002).
(3) Remove the applicable RIB2 access panels that follow:
(a) For the left wing, remove 540AZ and 540BZ (Ref. AMM TASK 57-27-12-000-002).
(b) For the right wing, remove 640AZ and 640BZ (Ref. AMM TASK 57-27-12-000-002).

4. Procedure
Subtask 28-42-15-020-056-A ** ON A/C NOT FOR ALL

A. Removal of the Wing-Tank Fuel-Quantity Probe
(1) Removal of the probe 21QT1 (21QT2)
(a) FOR [21QT1] (PROBE-FUEL QTY NO 1, RIB 1-2 L WNG TK INR GROUP A), [21QT2] (PROBE-FUEL QTY NO 1, RIB 1-2 R WNG TK INR GROUP A)

Fuel Quantity Probe 21QT1(21QT2) - Detail ** ON A/C NOT FOR ALL

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

1 Remove and discard the cable ties (1) to release the electrical cable (8) from the probe (11).
2 Loosen the terminal screw (7) on the terminal block (2).
3 Loosen the screws (3) (4) and (5) on the terminal block (2).
4 Identify and remove the electrical connectors of the cable (8).
5 Remove the bolts (10) and the washers (9).
6 Remove the bolts (12).
7 Remove the probe (11). Remove the bracket (13) from the probe (11).
(2) Removal of the probe 54QT1 (54QT2)
(a) FOR [54QT1] (PROBE-FQI NO 2 AND TEMP, RIB 1-2 L WNG TK GROUP B), [54QT2] (PROBE-FQI NO 2 AND TEMP, RIB 1-2 R WNG TK GROUP B)

Fuel Quantity Probe 54QT1(54QT2) - Detail ** ON A/C NOT FOR ALL

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

1 Remove and discard the cable ties (1) to release the electrical cable (8) from the probe (16).
2 Loosen the terminal screw (7) on the terminal block (2).
3 Loosen the screws (3), (4) and (5) on the terminal block (2).
4 Identify and remove the electrical connectors of the cable (8).
5 Loosen the clamp screws (10) on the temperature sensors (11).
6 Loosen the screws (12) and (15). Identify and remove the electrical connectors from the temperature sensors (11).
7 Remove the bolts (14) and the washers (13).
8 Remove the nuts (19) and the bolts (17).
9 Remove the probe (16). Remove the bracket (18) from the probe (16).
(3) Removal of the probe 23QT1 (23QT2), 56QT1 (56QT2), 25QT1 (25QT2)......
(a) FOR [23QT1] (PROBE-FUEL QTY NO 3, RIB 2-3 L WNG TK INR GROUP A), [23QT2] (PROBE-FUEL QTY NO 3, RIB 2-3 R WNG TK INR GROUP A), [56QT1] (PROBE-FQI NO 4, RIB 2-3 L WNG TK GROUP B), [56QT2] (PROBE-FQI NO 4, RIB 2-3 R WNG TK GROUP B), [25QT1] (PROBE-FUEL QTY NO 5, RIB 2-3 L WNG TK INR GROUP A), [25QT2] (PROBE-FUEL QTY NO 5, RIB 2-3 R WNG TK INR GROUP A), [26QT1] (PROBE-FUEL QTY NO 6, RIB 3-4 L WNG TK INR GROUP B), [26QT2] (PROBE-FUEL QTY NO 6, RIB 3-4 R WNG TK INR GROUP B), [27QT1] (PROBE-FUEL QTY NO 7, RIB 6-7 L WNG TK INR GROUP A), [27QT2] (PROBE-FUEL QTY NO 7, RIB 6-7 R WNG TK INR GROUP A), [28QT1] (PROBE-FUEL QTY NO 8, RIB 6-7 L WNG TK INR GROUP B), [28QT2] (PROBE-FUEL QTY NO 8, RIB 6-7 R WNG TK INR GROUP B), [29QT1] (PROBE-FUEL QTY NO 9, RIB 9-10 L WNG TK INR GROUP A), [29QT2] (PROBE-FUEL QTY NO 9, RIB 9-10 R WNG TK INR GROUP A), [30QT1] (PROBE-FUEL QTY NO 10, RIB 11-12 L WNG TK INR GROUP B), [30QT2] (PROBE-FUEL QTY NO 10, RIB 11-12 R WNG TK INR GROUP B), [59QT1] (PROBE-FQI NO 11, RIB 13-14 L WNG TK GROUP A), [59QT2] (PROBE-FQI NO 11, RIB 13-14 R WNG TK GROUP A), [60QT1] (PROBE-FQI NO 12, RIB 16-17 L WNG TK GROUP B), [60QT2] (PROBE-FQI NO 12, RIB 16-17 R WNG TK GROUP B), [61QT1] (PROBE-FQI NO 13, RIB 18-19 L WNG TK GROUP A), [61QT2] (PROBE-FQI NO 13, RIB 18-19 R WNG TK GROUP A), [34QT1] (PROBE-FUEL QTY NO 14, RIB 20-21 L WNG TK OUTR GROUPB), [34QT2] (PROBE-FUEL QTY NO 14, RIB 20-21 R WNG TK OUTR GROUPB)

Fuel Quantity Probes, Ribs 2 thru 21 - Detail ** ON A/C NOT FOR ALL

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

1 Remove and discard the cable ties (3) to release the electrical cables (10) from the probe (11).
2 Loosen the terminal screw (9) on the terminal block (4).
3 Loosen the screws (5) (6) and (7) on the terminal block (4).
4 Identify and remove the electrical connectors of the cable (10).
5 Remove the bolts (1) and the washers (2).
6 Remove the probe (11).
7 Put CAP - BLANKING on the disconnected electrical connectors.

[Rev.10 from 2021] 2026.04.01 00:11:14 UTC