TSA lim. Engine, APU

Question 1

Engine Model

Answer 1

AE3007A1 (LR)

AE3007A1E (XR)

Question 2

Engine: MIN Oil Temp. (LR)

Answer 2

21 C

For start is -40C for oil lubrication specified by MIL-L-23699D

Question 3

Engine: Min Oil Pressure Below 88% N2

Answer 3

34 psi

Question 4

Engine: Max Oil Pressure Below 88% N2

Answer 4

110 psi

(2) May be exceeded during start if oil temp is below 21 C. Engine must remain idle until oil press is less than 110 psi
(7) In Amber range 111-115 for Max of 5 min, 116 -155 for Max of 2 min, Total max time above 110 psi is 5 Min.

Question 5

Engine: Max Oil Pressure At or Above 88%N2

Answer 5

110 psi

(7) In Amber range 111-115 for Max of 5 min, 116 -155 for Max of 2 min, Total max time above 110 psi is 5 Min.

Question 6

APU: Max Operational Alt

Answer 6

37,000 ft

Question 7

APU: Max temp. for Start ( T-62T-40C11)

Answer 7

884° C

(1) May be exceeded up to 925 C Above 25,000ft during 10 sec

Question 8

APU: Max temp. for start (T-62T-40C14 )

Answer 8

884° C

Question 9

APU: Max continuous temp.

Answer 9

680° C

(6) The APU EGT may be exceeded up to 717 C for 5 min Max.

Question 10

APU: Max Altitude for Start

Answer 10

30,000 ft

Question 11

APU Starter Limits

- cooling period between each starting attemp:

Answer 11

Between 3 consec attemps - 1 min OFF

Between 2 series of 3 con. Attemps -30min OFF

Question 12

Vibration in amber range…?

Answer 12

Below 2.5 IPS is time limited to 5 min during takeoff or go-around phases or 10 sec during the remained of the flight phases

Question 13

Engine Warm-Up

Answer 13

Prior to take-off, the engines must be allowed to run at low thrust to stabilize the engine temperatures before take-off thrust is adjusted. After start, the engines must run at idle or taxi thrust during at least 4 minutes for cold engines (shut down for more than 90 minutes) or 2 minutes for warm engines. To increase N2 above 83% the engine oil temperature must be at 40°C minimum. In lieu of this limit, it is acceptable to run the engine for at least 8 minutes

Question 14

Engine Cool-Down

Answer 14

The engine must run for at least 1 minute at idle or taxi thrust before shut-down

Question 15

N1 maximum

Answer 15

100%

Question 16

Engine Max ITT Temp for Start (all models)

Answer 16

800° C

Question 17

Max ITT Temp for Take-Off (LR)

Answer 17

948° (Take-off thrust is time limited to 5min)

Question 18

Max ITT Continuous temp (LR, XR)

Answer 18

901° C (LR)

935° C (XR)

Question 19

Max ITT Temp All modes (XR)

Answer 19

992° C. Temps between 971° C and 992° C are time limited to 90 sec. 970° C Is time limited to 5min.

Question 20

Minimum Oil pressure at or above 88%N2 (LR)

Answer 20

50 psi. While this is an abnormal condition, Operations between 50 and 34 psi is permitted during take-off and go-around phases

Question 21

Minimum Oil pressure at or above 88%N2 (XR)

Answer 21

48 psi. While this is an abnormal condition, Operations between 48 and 34 psi is permitted during take-off and go-around phases

Question 22

APU max amps above FL300

Answer 22

300 amps

Question 23

Engine min oil Temp (XR)

Answer 23

21 C
• For start is -40°C for oil lubrication specified by MIL-L-23699D
• and -54°C for lubrication oil specified by MIL-L-7808K

Question 24

Engine Starter Limits

Answer 24

On Ground:
Starting or Dry motoring: up to 5min on, 5 min off
1st - 4th Cycles…… 1 min ON, 1 min OFF
Following Cycles….. 1 min ON, 5 min OFF

In Flight:
Max Continuous Operating time…. 5 min ON

Question 25

Minimum battery temp for APU start is?

Answer 25

-20°C

Question 26

Engine Max Oil Temp (all models)

Answer 26

126°C