AOM Limitations Flashcards
Maximum N1, low pressure compressor limit (-4,-8)
-4: 117.5%
-8: 106.7%
N2, high pressure compressor, maximum (-4, -8)
-4: 112.5%
-8: 105.5%
APU start cycle limitations
Between starts 1 & 2: 1min (TR wait), 1 min (batt)
Between starts 2 &3: 10 min (TR wait), 1 min (batt)
Between starts 3 & 4: 75 min (TR wait), 75 min (TR wait)
Restriction on speedbrakes inflight
use of spreedbrakes inflight with flaps extended beyond 20 degrees is not recommended
- DO NOT use speedbrakes below 1000ft AFE
Use of quiet climb for takeoff weights less than ___ is prohibited (-8)
650,000 lbs
Fuel temperature minimum limits (-4,-8)
-4: Fuel freeze + 3C
-8: Fuel freeze + 3C or -48C, whichever is higher
Maximum transient EGT (-4, -8)
-4: 870C (40 sec), during start
-8: 1060C (30 sec)
Maximum Continuous EGT ?
(-4, -8)
-4: 925C
-8: 1030C
APU negative pressure altitude limit is?
Do not operate APU below negative 1000 feet pressure altitude.
Do not extend flaps between positions ___ during fuel jettison
1 and 5 degrees
Maximum altitude with flaps extended
20,000 ft
When is reverse thrust prohibited?
Inflight and for backing the aircraft.
In icing conditions, if engine vibration indications are available and above ___ units, do not takeoff (-8)
4 units
For winds greater than ___ limit engine thrust to idle (-8)
55 kts
Engines must be shutdown when crosswind component exceeds ___ (-8).
55 kts
For tailwind component greater than ___ and winds greater than ___, limit thrust to ___ (-8).
5 kts, 26 kts, 45 %N1
For crosswind greater than ___, limit thrust to a setting not to exceed ___. (-8)
35 kts, 45%N1
When must continuous ignition be used (-4)
(auto activated with anti-ice)
- Icing conditions;
- Severe turbulence;
- Heavy precipitation
- Volcanic ash
- Slush & Standing.
Maximum continuous and maximum transient oil temperature and time (-4, -8)
-4: 160 continuous, 175 transient (15 min)
-8: 160 continuous, 177 transient (15 min)
Inflight start
maximum EGT
(-4, -8)
-4: 750C (unlimited)
-8: 875C (unlimited)
or
975C for airstarts following inflight high power fuel cut.
Maximum takeoff EGT (-4, -8)
-4: 960C (5 minutes)
-8: 1060C (5 minutes, or 10 minutes if loss of thrust on engine during takeoff)
Minimum oil pressure
10 PSI
Ground start maximum EGT
750C unlimited
Autoland wind limits
HW 25 kts
XW 25 kts
TW 15 kts
Autoland glideslope angle limits
Maximum: 3.25 degrees
Minimum: 2.5 degrees
Autoland flap limitations
Only at flaps 25 or flaps 30 degrees
For single channel ILS approaches, the autopilot must be disengaged before the airplane descends below ___.
100 ft AGL
Maximum landing weight (-4, -8)
-4: 652,000 lbs
-8: 763,000 lbs