4. Procedure
_________
Subtask 26-21-00-710-056
A. Do an ENG FIRE TEST - Circuit Verification
(1)
Do the circuit verification of the ENG Agent SQUIB LTS (Ref. TASK 26-21-00-040-003).
(2)
Do the operational test from Multipurpose Control and Display Unit (MCDU) (Ref. TASK 26-12-00-710-002).
1EFF : ALL 1 26-21-00Page 410 1 1 Nov 01/98R 1 1 1CES 1
TASK 26-21-00-040-003
Test of the SQUIB Legend of the AGENT Pushbutton switch
WARNING : MAKE SURE THAT THE ENG1(2) FIRE PUSHBUTTON SWITCH IS PUSHED IN BEFORE
_______
YOU START THE TEST.
CAUTION : TO RESET THE ENG 1(2) APU FIRE PUSHBUTTON SWITCH:
_______
-PUSH THE PUSHBUTTON SWITCH FULLY IN (LATCHED POSITION).
THEN CLOSE THE GUARD.
DO NOT TRY TO CLOSE THE GUARD AND PUSH THE PUSHBUTTON SWITCH AT THE
SAME TIME.
1. Reason for the Job
__________________
Refer to the MMEL TASK: 26-21-02
Engine Fire Extinguishing
Agent 1 & 2 "SQUIB" Light
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
No specific voltmeter
No specific warning notice
No specific access platform 1.6 m (5 ft. 3 in.)
263193 2 SHUNT PLUG - FIRE EXTINGUISHER CARTRIDGE
R 53100141-1 1 PLUG SHUNT
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power R 26-12-00-710-001 Operational Check of Loop/Squib 26-21-41-000-001 Removal of the Engine Fire-Extinguisher Bottle (6WE1,8WE1,6WE2,8WE2) 26-21-41-400-001 Installation of the Engine Fire-Extinguisher Bottle
(6WE1,8WE1,6WE2,8WE2) R 29-10-00-710-001 Operational Check of Hydraulic Fire Shut Off Valves R and Associated Indicating System
TSM 26-OBSV PB101 (for corrective action)
3. Job Set-up
__________
Subtask 26-21-00-861-055
A. Energize the aircraft electrical circuit (Ref. TASK 24-41-00-861-002).
Subtask 26-21-00-941-057
B. Safety Precautions
(1)
On the ENG panel 115VU:
(a) Put a warning notice in position 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 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 in position to tell persons not to energize the FADEC 1(2).
Subtask 26-21-00-865-060
C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B 2WE1 Q44 121VU ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A 1WE1 Q43 121VU ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B 2WE2 Q42 121VU ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A 1WE2 Q41
Subtask 26-21-00-010-057
D. Get Access
(1)
Put the access platform in position below the engine pylon.
(2)
Remove the access doors:
FOR 6WE1, 8WE1
415BR, 415BL
FOR 6WE2, 8WE2
425BR, 425BL.
R **ON A/C 001-049, 101-105, 201-206,
Subtask 26-21-00-020-051
E. Aircraft Maintenance Configuration
(1)
In the engine pylon, on the engine fire extinguisher bottle, disconnect the electrical connectors from the cartridges:
-
for the engine 1: 5WE1-A (bottle 1) and 7WE1-A (bottle 2)
-
for the engine 2: 5WE2-A (bottle 1) and 7WE2-A (bottle 2).
(2)
Put a SHUNT PLUG - FIRE EXTINGUISHER CARTRIDGE (263193) on the cartridges.
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