TM 5-3820-276-10-2
OPERATOR MAINTENANCE
AUXILIARY POWER UNIT (APU) SYSTEM POWERED INDICATOR DOES NOT ILLUMINATE - MUD
CLEANING SYSTEM (MCS)
INITIAL SETUP:
References
Equipment Condition
Volume 1, WP 0054
Engine off (Volume 1, WP 0050)
Catwalks open (Volume 1, WP 0049)
TROUBLESHOOTING PROCEDURE
APU SYSTEM POWERED INDICATOR DOES NOT ILLUMINATE - MCS
SYMPTOM
Green SYSTEM POWERED indicator does not illuminate when attempting to operate APU.
MALFUNCTION
Green SYSTEM POWERED indicator fails push-test.
CORRECTIVE ACTION
1.
Start APU (Volume 1, WP 0054).
2.
Position GENERATOR switch to ON position (Figure 1).
SWITCH
WWDS00699
Figure 1.
GENERATOR Switch.