Pilot's Operating Handbook
Section 3
Emergency procedures
EASA Approved
Edition 0 - March 05, 2019
Rev. 0
Page 3.10.1
3.10 - Pressurization and air conditioning
PRESSU OFF
1/2
Possibly due to :
- system malfunction,
- BLEED switch on OFF position.
If in flight :
1 - Oxygen masks Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 - BLEED switch Check / Correct. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
If possible :
3 - TRQ Reduce. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
► Fly the airplane ◄
4 - BLEE
D switch OFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 - BLEED switch AUTO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
If PRESSU OFF is still ON :
If altitude > 10000 ft :
If necessary :
6 - Perform procedure Emergency descent. . . . . . . .
Refer to chapter 3.6
7 - Continue the flight.
● NOTE ●
If Zp > 10000 ft ± 500 ft, it may be followed by CABIN ALTITUDE and
USE OXYGEN MASK
●
Inform ma
intenance department.
End of procedure ■
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