Additional 737 Limitations

Question 1

Engine warmup

Answer 1

Idle/taxi thrust
3 minutes
5 minutes if engines have been shut down for over 5 hours

Question 2

Flight maneuvering load acceleration limits

Answer 2

Flaps up: 2.5g to -1.0g

Flaps down: 2.0g to 0.0g

Question 3

Max t/o and landing pressure altitude

Answer 3

10,000 feet

Question 4

Normal runway width

Minimum runway width

Answer 4

Normal: 148’
Minimum: 100’
See limits section for details

Question 5

Max airspeed

Answer 5

VMO- barber pole

MMO- .82 Mach

Question 6

Max gear retraction speed

Answer 6

235 knots

Question 7

Max gear extension speed

Answer 7

270 knots/.82 Mach

Question 8

Max gear operating/extended speed

Answer 8

320 knots/.82 Mach

Question 9

Max cabin pressure differential:

Max differential pressure t/o and landing:

Answer 9

9.1

.125

Question 10

Window heat on:
Probe heat on:
Wing anti ice:

Answer 10

Window heat: must be on 10 minutes before t/o
Probe heat: must be on prior to t/o
Wing anti ice: on t/o don’t use until after the first thrust reduction
-icing considerations:
1. Recommended turn off switch @ before T/O final items (FFS briefing), definitely turn off for bleeds off t/o
2. Not required for taxi in after landing

Question 11

Aileron trim prohibited:

Answer 11

When autopilot is engaged

Question 12

Can you dispatch, t/o, or land on runways with RCC of 1 or 0?

Answer 12

No

Question 13

Minimum battery voltage for APU start

Answer 13

23 volts

Question 14

Eng start EGT limits
NG
MAX

Answer 14

NG: 725°C
MAX: 753°C

Question 15

APU max altitudes:

• bleed and electrical:
• bleed
• electrical

Answer 15

Bleed and electrical: 10,000’
Bleed only: 17,000’
Electrical only: 41,000’

Question 16

Minimum oil qty prior to engine start

Answer 16

70%

Question 17

Do not engage engine starter above:

Answer 17

20% N2

Question 18

APU warmup prior to bleed use
NG:
MAX:

Answer 18

NG: 1 minute
MAX: 2 minutes

Question 19

APU shutdown time before turning battery switch off?

Answer 19

2 minutes

Question 20

Can you hold in icing with flaps extended?

Answer 20

No

Question 21

Max airspeed to extend flaps with alternate system:

Answer 21

230 knots

Question 22

Do not operate WX radar when:

Answer 22

-fueling
-near fuel spill
-w/in 15’ of people
(except in test mode)

Question 23

RNAV approach what RNP do we set?

RNP approach what is the lowest RNP we can set?

Answer 23

• .30

- .10 (lowest)

Question 24

Fuel imbalance occurs:

Answer 24

1000lbs… fuel must be less than this for taxi, t/o, landing, flight

Question 25

Center tank fuel pumps:

Answer 25

Must not be ON unless someone is on the flight deck to monitor low pressure lights
-for ground ops, must not be on unless fuel qty in center tank exceeds 1000lbs

Question 26

Minimum fuel for stationary grounds ops of electric motor-driven hydraulic pumps:

Answer 26

1675lbs in respective tank

Question 27

Hydraulic quantity
Max:
Min:

Answer 27

Max: 105% (above risks smoke in cockpit from packs)
Min: above RF (76%)

Note: if landing in icing and flaps are left out at gate, #2 quantity may show low/RF until retraction… query MX so they can inspect the flaps for ice/retract them

Question 28

Max tire ground speed
NG:
MAX:

Answer 28

NG: 195 knots
MAX: 204 knots

Question 29

Engine cooldown for shutdown

Answer 29

3 minutes…. None required if parked and ready to shutdown