Limitations - Engines, APU+

Question 1

Updated 6-3-20
Engine Limit Display Markings
= Max. and min. limits?
= Cautionary range? 
= Normal operating range?

Answer 1

= Max. and min. limits = red line
= Caution range = amber arc
= Normal operating range = white arc

Question 2

Updated 6-3-20
Engine Ignition
Engine Ignition must be used for:
= (4) + ENGINE START Switches positions

Answer 2

-> Takeoff (Auto or CONT)
-> Landing (Auto or CONT)
-> Anti-ice (Auto or CONT)
-> Ops. in heavy rain (CONT)
Note: there are 4 different positions of the Engine Start Switches = from left to right = GRD, AUTO, CONT, FLT

Question 3

Updated 6-3-20
EEC (Electronic Engine Control)
(4) conditions for takeoff w/EECs manually selected in Alternate mode:

Answer 3

• > Both EECs must be in Alternate mode (EEC switches located on aft overhead panel)
• > (B737-NG) 26K max (27K max, if planned) takeoff thrust must be used & (B737-MAX 8) TO takeoff thrust must be used
• > Do not use the FMC takeoff N1 or QRH V-Speeds
• > Use of autothrottle for takeoff is prohibited

Question 4

Updated 6-3-20
27K Bump (B737-NG)
= who authorizes & when can we select ?
= can we select or req. through ACARS ?
= is KSNA ops. part of this limitation ?

Answer 4

= authorized by dispatch and select only if specified on the Load Agent generated TPS
= No…if TPS is based on any other thrust rating
= KSNA is not part of this limitation

Question 5

Updated 6-3-20
Reverse Thrust
-> Use for ground ops. only?…Yes / No
-> Can we use reverse thrust in flight intentionally?
-> Is backing the A/C w/the reverse thrust prohibited?
-> Do or Do not attempt go-around after thrust reverser deployment on ldg.?

Answer 5

• > Yes…Use for ground ops. only.
• > Intentional selection = prohibited
• > Backing the A/C w/the reverse thrust is prohibited
• > Do not attempt go-around after thrust reverser deployment on ldg.

Question 6

Updated 6-3-20
APU Bleed and Electric Load

Max. Alt. = APU bleed + electrical load ?

Answer 6

10,000ft.

Question 7

Updated 6-3-20
APU Bleed and Electric Load

Max. Alt. = APU bleed ?

Answer 7

17,000ft

Question 8

Updated 6-3-20
APU Bleed and Electric Load

Max. Alt. = APU electrical load ?

Answer 8

41,000ft.

Question 9

Updated 6-3-20
APU Bleed Valve

APU Bleed Valve must be closed when: (3)

Answer 9

• > Ground air is connected and Isolation Valve is open
• > Eng. #1 Bleed Valve is open
• > Isolation Valve and Eng. #2 Bleed Valves are open

Question 10

Updated 6-3-20
APU Bleed Valve

Can eng. power be above idle w/APU Bleed valve open during eng. start.

Answer 10

NO

Question 11

Updated 6-3-20
APU Bleed Valve

After 3 consecutive APU aborted start attempts, how long a cooling period req. ?

Answer 11

15 minutes

Question 12

Updated 6-3-20
Thrust

Is op. w/assumed temp. reduced TO thrust permitted w/anti-skid inop.?

Answer 12

No

Question 13

Updated 6-3-20
Oil Quantity

Min. Oil Quantity prior to engine start = B737-NG?
= B737-MAX 8?

Answer 13

• > B-737-NG = 12 qts.

- > B-737-MAX 8 = 17qts.