Special Operations - PRO-SPO-20 Flight Without Cabin Pressurization

Question 1

001- Can a Revenue Flight be Perform Without Cabin Pressurization?

PRO-SPO-20 P1

Answer 1

Revenue Flight is Permitted Without Cabin Pressurization.

Question 2

002- What are the Std. Oxygen Requirements for PAX?

PRO-SPO-20 P1

Answer 2

CAB PRESS ALT Between 10000 to 14000 Ft:

• Enough OXY for 10 % of the Pax for Flight in Excess of

30 Min at those Altitudes

CAB PRESS ALT Between 14000 to 15000 Ft:

• Enough OXY for 30 % of the Pax

CAB PRESS ALT Above 15 000 Ft:

• Enough OXY for ALL PAX.

Question 3

003- What is the Best V/S in Climb/Descent if the Cabin is Not Pressurised?

PRO-SPO-20 P2

Answer 3

• The Rate of CLB must be Limited to about 500 Ft/Min
• The Rate of DSCT must be Limited to about 1000 Ft/Min.

Question 4

004- What are the recommended Level/Timing in case of Loss of Pressurization?

PRO-SPO-20 P3

Answer 4

According to the Graph it is Recommended to Stay Below:

390 to –> 180 within 5 Min

180 to –> 140 within 7 Min (12 Min in Total)

140 to –> 100 within 30 Min (42 Min in Total).

Question 5

005- Where to find the Procedure if Both Packs are Inop at Dispatch?

PRO-SPO-20 P4

Answer 5

Special Operations

(Flight Without Cabin Pressurization)

(Systems)

PRO-SPO-20 P4.