Limitations Flashcards
What is the minimum flight crew?
Answer: 2 PILOTS.
Reference: OM Vol. 1, Section 1, Limitations
What is maximum runway slope?
Answer: ± 2% OF RUNWAY LENGTH.
Reference: OM Vol. 1, Section 1, Limitations
What is maximum temperature for aircraft operation?
Answer: ISA + 35oC.
Reference: OM Vol. 1, Section 1, Limitations
What is the maximum takeoff and landing pressure altitude?
EMB-135ER/LR and EMB-145EP/LR: -1000 ft to 8000 ft. EMB-145XR: -1000 ft to 10000 ft.
What are the minimum and maximum fuel tank temperatures?
-40oC to 52oC.
Reference: OM Vol. 1, Section 1, Limitations
On a cold morning day, the airplane power is established. If the APU is to be used, what is the minimum battery temperature for APU start?
The minimum battery temperature for APU start is -20oC. Reference: OM Vol. 1, Section 1, Limitations
What are the APU starter limits? At what percent rotor speed would the APU automatically shut down? How long can the APU operate in the amber range?
After 1st Attempt …. 1 MINUTE OFF After 2nd Attempt …..1 MINUTE OFF After 3rd Attempt …….30 MINUTES OFF. The APU will be automatically shut down at 104% rotor speed. The APU EGT may exceed 680oC up to 717oC (Amber) for a maximum of 5 minutes.
Reference: OM Vol. 1, Section 1, Limitations
Assuming the oil temperature is -15°C, can engines be started?
Yes, the minimum oil temperature for starting is -40oC.
Reference: OM Vol. 1, Section 1, Limitations
What is the maximum ITT for engine start?
800oC.
Reference: OM Vol. 1, Section 1, Limitations
If a crew has a ‘hung start’ during the 1st start attempt what is the minimum time a crew has to wait before another engine start can be attempted? What about engine start cycles 2 through 5?.
1 MINUTE OFF minimum after the 1st start attempt. The 2rd through 4th start attempt is 1 MINUTE ON, 1 MINUTE OFF. The 5th start attempt is 1 MINUTE ON, 5 MINUTES OFF.
Reference: OM Vol. 1, Section 1, Limitations
If a cold engine is started and the oil pressure spikes (increases) to 120 PSI? What should the crew do? What if it was 115 PSI?
Start timer. Monitor and comply with the oil pressure range limitation.110 PSI may be exceeded during starts if oil temperature is below 21oC. The engine must remain at IDLE until the oil pressure is less than 110 PSI.
Reference: OM Vol. 1, Section 1
While taxiing out to the runway (less than 88% N2) what is the acceptable oil pressure range?
34 PSI to 110 PSI (Green Range) Reference: OM Vol. 1, Section 1, Limitations
What is the definition of a cold engine?
An engine is considered to be cold if it has been shut down for more than 90 minutes.
Reference: OM Vol.1, Section 1, Limitations
Assuming a cold engine, how long must the engine run to meet the engine warm- up limitations?
4 minutes.
Reference: OM Vol. 1, Section 1, Limitations
Assuming a warm engine, how long must the engine run to meet the engine warm- up limitations?
2 minutes.
Reference: OM Vol. 1, Section 1, Limitations