TM 10-5410-228-24
2.8
UNIT LEVEL TROUBLESHOOTING PROCEDURES Continued.
8.
NBC FAN `PRESSURE LOW' INDICATOR DOES NOT COME ON AND AUDIBLE ALARM DOES
NOT SOUND WHEN NBC FAN SWITCH IS FIRST TURNED ON MUTE SWITCH OFF, `NBC FAN
ON' INDICATOR ON Continued.
2-42