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must look at the FMA to know what is actually happening. The FMA is broken
into columns as shown below:
Each column has rows for messages and memos. There are up to three rows
available for each column to use. The first three columns, Thrust, Vertical and
Lateral have the following rules:
Top row, Green – Active or Engaged, White - Armed
Middle row, Blue or Magenta – Armed (Magenta shows ALT CSTR from FMGC)
Bottom row, Messages about flight control first priority
Bottom row, Messages about FMGS have second priority
This is what the FMA looks like at the top of the PFD:
The FMA is at the top of the PFD and allows the pilots to see exactly what the
various modes of the auto flight system are. The above examples are just given
to allow you to see what type of messages would be in the FMA, not an actual
flight situation. A starred message (ALT*) means that portion is in the process of
capturing. A white box message means mode change or automatic switching
has just taken place in past 10 seconds. The PH has a complete list of all
messages and meanings (PH 14.2.1).
COLUMN NAMES
THRUST VERTICAL LATERAL
APPROACH
CAPABILITY
STATUS
AUTOFLIGHT
ENGAGEMENT
STATUS
COLUMNS
ROWS THR VERT LAT APP
STAT
ENGAG
STAT
ACTIVE, ENGAGED MODES MAN THR ALT* NAV CAT 3 AP 1+2
ARMED MODES G/S LOC DUAL 1FD2
MEMOS, SPECIAL
MESSAGES
LVR ASYM SET HOLD SPEED DH 100 A/THR
CAT 3 AP 1+2
DUAL 1FD2
THR IDLE
LVR ASYM
ALT*
G/S
NAV
LOC
DH 100 A/THR
US Airways Airbus A319, A320, A321 Notes
58
Oxygen
Crew oxygen is supplied from one cylinder. A green over pressure disk is located
on the outside of the aircraft skin below the Captains windows. Blowout of this
green disk indicates thermal discharge. Crew oxygen is turned on using a pb in
the overhead panel. Crew oxygen pressure is indicated on the SD and if low the
pressure indication will have a half amber box around it. However, the Airbus low
pressure is not the same as the US Airways limit, therefore the half amber box
should be ignored and crew action to check pressure is not required until
pressure is less than 1000 psi. A chart is available on PH pg. 3-34 to indicate
amount needed for number of crewmembers. Masks are full-face and have clear
“tear-off” strips. If face mask has surface contamination, the tear-off strip can be
removed to clear an area to see through.
Passenger oxygen is chemically generated. Passenger oxygen is located at
passenger seats, lavs, galleys and at each F/A station with 2, 3 or 4 masks to a
group. All EXIT and cabin signs will automatically illuminate when cabin altitude
exceeds about 11,000 ft. Masks will automatically deploy when cabin altitude
exceeds 14,000’. May be manually deployed by pilot using red guarded MASK
MAN ON pb. Oxygen generators last approximately 13 minutes after first mask in
group is used. Passenger oxygen SYS ON light only means that the signal was
sent, some masks may not deploy and F/A’s may have to manually open some
doors.
US Airways Airbus A319, A320, A321 Notes
59
Powerplant (TM 7-70 2.14.1)
(non-memory)
319: CFM 56-5B6/P rated at 23,500 lbs. thrust or IAE V2500
320: CFM 56-5B4/P rated at 27,000 lbs. thrust or IAE V2500
321: CFM 56-5B3/P rated at 32,000 lbs. thrust
Max Starting Temp: 725° C
Max Continuous Temp: 915° C
TOGA Temp: 950° C (5 mins.)
13 qts. Min for dispatch (U) (PH 1.12.14)
FADEC controlled (Full Authority Digital Engine Control) (PH 16.1.3)
Each FADEC is a two channel computer with one channel active and the other
used as backup. Each FADEC has its own alternator that powers it once N2 is
above a certain value. If the alternator fails normal ships power will take over.
Three idle modes:
 Modulated: Varies with demand, in flight with flaps at 0
 Approach: Depends only on altitude, activated when flaps not at 0
 Reverse: Selected when on ground and thrust levers at idle, slightly
higher than forward idle.
Five Thrust Lever Detents:
 TOGA: Takeoff go-around
 FLX/MCT: Flex takeoff, Max continuous
 CL: Climb thrust
 IDLE: Idle thrust for forward and reverse
 FULL REV: Maximum reverse thrust
Continuous ignition provided automatically (with Mode selector in NORM) when:
 Engine Anti-ice selected ON on IAE and non-updated CFM engines
 Engine flameout in-flight detected
 EIU fails
Continuous ignition may be selected manually by positioning the ENG MODE
　
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