UJPT, E2-C2, ADV, & IUT EMFP-06
Electrical and Indicator Emergency Procedures
PROGRESS CHECK
Question 7 -- 1.8.1.4.3.2
Below what altitude should you descend if you have an
OBOGS malfunction?
ANSWER: 10,000 ft cabin altitude or minimum safe altitude
V.
Centralized warning system (CWS) failure
Sg 8, fr 2
Lesson Organization
A.
Audio tone failure 1.8.1.8.1.2, 1.8.1.8.1.2.1
1.
Indications: confirmed malfunction causes warning/
Sg 8, fr 3, 4
caution lights to illuminate without tone
Warning/Caution Tone
Failure
2.
Procedures
a.
Comply with procedures for indicated
malfunction
b.
Set MASTER TEST switch to TONE to test
Sg 8, fr 5
audio tone
MASTER TEST Switch
c.
Verify operation of intercom normal amplifier
(NORM)
(1) Perform comm check with aft cockpit or key
ICS and listen for side tone
(2) Select alternate amplifier (ALT)
NOTE: If tone sounds for no apparent
reason, attempt to cancel by pushing the
MSTR ALERT light.
d.
Land as soon as practical
(9-98) Original
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