3-17

Question 1

APU

Minimum ambient temp for starting a cold soaked APU on the gound

Answer 1

-40 C

Question 2

APU name

Answer 2

Allied Signal RE 220 (RJ)

Question 3

APU

Maximum EGT

Answer 3

0-100% RPM

692 C to 1038 C

Question 4

APU Starter

Motor duty cycle

Answer 4

Limited to not more than 3 start/start attempts in 1 hour

Question 5

APU Starter

Delay between cranking attempts

Answer 5

2 mins between each attempt

Question 6

APU

Maximum RPM

Answer 6

106%

Question 7

APU

Maximum EGT

Answer 7

1038 C

Question 8

APU

Bleed Air Limitations - Bleed Air Extraction

Answer 8

APU bleed air extraction is not permitted above 25,000 ft.

Question 9

APU

Bleed Air Limitations - Engine start during ground operations

Answer 9

No bleed air extraction limitation. Each engine may be started using the APU as a bleed air source.

Question 10

APU

Maximum permissible Load on the APU

Answer 10

40 kVA

Question 11

APU

Indications - APU EGT C

Answer 11

RED - 807

GREEN - 0 to 806

Question 12

APU

Indications - APU RPM %

Answer 12

RED - 107

GREEN - 0 to 106

Question 13

APU

Maximum Generator Loading Limit

Answer 13

41,000 ft.

Question 14

APU

Altitude Starting Limit

Answer 14

37,000 ft.

Question 15

APU

Bleed Altitude Limit

Answer 15

25,000 ft.

Question 16

APU

Ground Starting Altitude Limit

Answer 16

15,000 ft.