Subtask: 1.1.4 Perform External walk around

Question 1

Why does the Emergency/Parking Brake need to be on prior to starting the external
inspection? (SOPM Preflight)

Answer 1

(so that) there is sufficient hydraulic pressure to activate the Emergency/Parking Brake to
check the Brake Wear Indicators. 04-01.15

Question 2

Just because the parking brake is on, does this guarantee that there is sufficient
hydraulic pressure to check the Brake wear indicators? (AOM Vol. 2 Landing Gear and
Brakes)

Answer 2

No, there may not be any pressure remaining in the emergency pressure accumulator.

Question 3

If the hydraulic pressure is depleted for the brakes, how can it be restored prior to the external walk around? (AOM Vol. 2 Hydraulic)

Answer 3

Hydraulic pumps 1 and 2 would pressurize the break system

Question 4

On the external inspection, you notice that the air data smart probes are covered in frost. What would be an appropriate action by the pilot? (Ref. SOPM Ch. 4)

Answer 4

When a parked aircraft has been exposed to freezing conditions, moisture can freeze inside the ADSPs and create an undesired indication on the ground, usually during the first power-up of the day.

ADSP Heater Switch …………………………………………………………………………………………………..ON Flight Control PBIT. …………………………………………………………………………………… ACCOMPLISH

Verify the clock on the Flight Control Synoptic page resets to 50 hours after the flight control PBIT is complete. 04-01.14

Question 5

Provide at least one other condition that would require heat being applied to the ADSP’s during the pre-flight? (Ref. SOPM Ch. 4)

Answer 5

When airspeed indication is present on the PFDs, any or all of following messages from the AFCS system may be displayed on EICAS:
• AFCS FAULT • AT FAIL • AP FAIL • FD FAIL • YD FAIL • APPR 2 NOT AVAIL • Air Data Systems (ADS) messages may be displayed on the EICAS also

On the first flight of the day, with temperatures below -18°C (0°F), or when the smart probes are frozen, accomplish the following procedure after AC Power is established on the aircraft. 04-01.14

Question 6

Use the pictorial walk around - Describe the preflight action outlined in the SOPM for the Nose Landing Gear. (SOPM Preflight)

Answer 6

NOSE LANDING GEAR

Wheel Chocks …………………………………………………………………………………………………………..IN Wheels and Tires ………………………………………………………………………………………. CONDITION
*** Clear of ice

Up Lock Hook …………………………………………………………………………………………… UNLOCKED Downlock Springs ……………………………………………………………………………………… CONDITION Strut/Wheel Well/Doors ……………………………………………………….. CONDITION and NO LEAKS Ground Locking Pin …………………………………………………………………………………….. REMOVED Landing and Taxi Lights ……………………………………………………………………………… CONDITION
• Clean and undamaged
04-01.17

Question 7

What unique piece of equipment resides in the right forward fuselage? Describe the SOPM external preflight of the RAT. (SOPM Preflight)

Answer 7

RAT Safety Lock Pin ……………………………………………………………………………………. REMOVED FWD Service Door …………………………………………………………………………………………….CHECK
• When not in use, visibly secured
04-01.17

Question 8

What is the proper preflight action of the Engine Inlet according to the SOPM? (SOPM Preflight)

Answer 8

Engine Inlet ………………………………………………………………………………………………. CONDITION
• Check for FOD and leaks inside air inlet. Ensure there is no damage to the T12 Sensor and the FADEC Cooling Inlet is clear.
• *** Clear of ice or snow
04-01.19

Question 9

Are there Nacelle Strakes on both sides of the engine? 

SOPM Preflight

Answer 9

Yes

04-01.19

Question 10

How many magnetic level indicators do we have to inspect on each wing? (SOPM Preflight)

Answer 10

Magnetic Level Indicators …………………………………………………… PUSHED IN AND NO LEAKS
• Verify RH2 and RH3 Magnetic Level Indicators
04-01.20

Question 11

Describe the Main Landing Gear inspection according to the SOPM. (SOPM Preflight)

Answer 11

Right Main Gear ………………………………………………………………………………………………..CHECK
• *** Clear of ice and unobstructed
Wheels and Tires ………………………………………………………………………………………. CONDITION Up Lock Hook …………………………………………………………………………………………… UNLOCKED Down lock Springs……………………………………………………………………………………… CONDITION Strut/Wheel Wells ………………………………………………………………CONDITION AND NO LEAKS Ground Locking Pin …………………………………………………………………………………….. REMOVED Brakes Wear Indicators ………………………………………………………………………………………CHECK
04-01.20

Question 12

How many static discharges are on the aileron? Winglet? What document would you refer to regarding missing static discharges? (SOPM Preflight, CDL)

Answer 12

Static Dischargers ……………………………………………………………….. NUMBER AND CONDITION
• Verify three static discharges on the aileron and six on the winglet
• Refer to the CDL for dispatch with missing items
04-01.20