(2)
Voltmeter - 28 vdc
(3)
Resistor - 10 Kohm
B. References
(1)
24-22-00/201, Manual Control
(2)
26-22-00/501, APU Fire Extinguishing
(3)
20-41-02/201, Electrostatic Discharge Sensitive Devices
(4)
49-11-00/201, Auxiliary Power Unit
(5)
IPC 26-15-20 Fig.1
C. Access
(1)
Location Zone
138 Body Landing Gear Well R.H.
221 Control Cabin LH
222 Control Cabin RH
(2)
Access Panels
761 Body Landing Gear - Aft Inboard Right
763 Body Landing Gear - Fwd Inboard Right
D. Prepare for the Test
S 865-002
(1) Supply electrical power (Ref 24-22-00/201).
S 045-030
WARNING: FAILURE TO OPEN THE CIRCUIT BREAKERS OR TO DISCONNECT THE
_______ ELECTRICAL CONNECTOR MAY CAUSE THE CONTENTS OF THE APU FIRE BOTTLE TO COME OUT.
(2) Open these circuit breakers and install a DO-NOT-CLOSE tag:
(a) P6 Main Power Distribution Panel
1) 6H5 FIRE EXTINGUISHER APU
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(b) P6 Main Power Distribution Panel.
1) 6L4 FLT DECK LIGHT CAPT IND
S 865-032
WARNING: DO NOT TOUCH THE SQUIB BEFORE YOU DO THE PROCEDURE FOR
_______ DEVICES THAT ARE SENSITIVE TO ELECTROSTATIC DISCHARGE. ELECTROSTATIC DISCHARGE CAN CAUSE THE FIRE BOTTLE TO RELEASE ITS CONTENTS SUDDENLY AND CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(3)
Before you touch the squib, do the procedure for devices that are sensitive to electrostatic discharge (AMM 20-41-02/201).
S 035-003
(4)
Disconnect the connector DM103B from the squib on the APU fire extinguisher bottle.
S 045-027
WARNING:_______PUT A PROTECTIVE COVER ON THE FIRE BOTTLE SQUIB. IF YOU DO NOT PUT A PROTECTIVE COVER ON THE FIRE BOTTLE SQUIB, THE FIRE BOTTLE CAN RELEASE ITS CONTENTS SUDDENLY AND CAUSE INJURY TO PERSONS.
CAUTION:_______DO NOT PUT A SHUNT PLUG ON THE FIRE BOTTLE SQUIB. THE SHUNT PLUG CAN CAUSE DAMAGE TO THE SQUIB PINS.
(5)
Put a protective cover on the fire bottle squib.
S 445-004
(6)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P6 Main Power Distribution Panel
1) 6H5 FIRE EXTINGUISHER APU
(b)
P6 Main Power Distribution Panel.
1) 6L4 FLT DECK LIGHT CAPT IND
E.
Procedure
S 715-024
(1) Do the test of the APU fire shutdown module.
(a) Push and hold the FIRE/OVHT TEST switch on the P5 pilot's overhead panel.
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(b)
Make sure that the APU FIRE light (red) on the APU shutdown module M869 (M869 module) comes on.
(c)
Make sure that the APU FIRE WARNING HORN on the M869 module goes on.
CAUTION: DO NOT PUSH THE SWITCH THAT LETS THE CONTENTS OUT OF THE
_______ APU FIRE EXTINGUISHER BOTTLE AFTER THE FIRE CONTROL SWITCH IS PULLED. THE CONTENTS OF THE APU FIRE BOTTLE WILL COME OUT IF YOU PUSH THE SWITCH.
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