APU STDY 02: 1-1-1 Preperation Flashcards
STEP 1 of APU OPERATION PROCEDURES?
The operator must be familiar with the emergency shutdown procedures
Be prepared to shut down the APU immediately if…
- If the FIRE warning light comes on or a situation is observed which requires immediate shutdown.
Double Hearing protection is required when operating or within 50 ft of an operating APU
What are the AFOSH Standards for hearing protection while a/c systems are running?
0-84 NONE
85-109 SINGLE
110 & up DOUBLE
Search radar, NVIS system, wing isolation valve switches and all other aircraft system switches should be in what position?
OFF or NORM
Prior to operating the APU or applying electrical power to the airplane…
check the forms (AFTO forms 781) to be sure no condition exists which would prohibit operation of the APU.
Prior to first start of the day why do you make sure the the APU fuel shutoff valve is operating properly?
- DAMAGE to equipment and injury to personnel could result.
Why do you not operate APU if the APU fuel shutoff valve is not operating properly?
- DAMAGE to equipment and injury to personnel could result.
How do you know if the fuel SOV is not operating properly?
. If STEADY flow continues, APU fuel shutoff valve is stuck open and must be repaired before continuing)
What position is the Engine condition lever is prior to start?
Engine condition lever to GND STOP position.
AIR DEFLECTORS sw’s are in what position prior to start?
AIR DEFLECTORS sw’s are in the OFF position.
AIR DEFLECTORS sw’s are in what positoin prior to start??
AIR DEFLECTORS sw’s are in OFF position
DC Ground bust tie switch in what position prior to start?
DC Ground bust tie switch in tied position
Turn on UHF radio and set to ground control frequency to provide emergency Turn on UHF radio and set to ground control frequency to provide…
emergency communications
Why do you turn the UHF radio on prior to start?
Preform Radio Check to establish ground communications.
Operation of the APU in sandy, graveled, or loosely surfaced areas may cause….
foreign objects to be drawn into the APU.
