A/C Flashcards
How would the PACKS operate in icing conditions at 2000’ AGL in CLB thrust?
PACK 1 is off and PACK 2 is on.
Reference: OM Vol. 2, Section 2-14, Pack Valve Operational Logic
What is a PACK overheat?
A PACK overheat is caused by the air leaving the pack being too hot.
Reference: OM Vol. 2, Section 2-14, EICAS Messages
How would the PACKS operate during a go-around at 1100 AGL?
Both PACKS would turn off.
Reference: OM Vol. 2, Section 2-14, Pack Valve Operational Logic
What is a PACK overload?
This problem indicates that the air pressure entering the PACK is too high or that the air temperature downstream of the compressor is too hot.
Reference: OM Vol. 2, Section 2-14, EICAS Messages
What altitude must be set in the pressurization controller?
The landing elevation
Reference: OM Vol.2, Section 2-14
What is the maximum operational altitude with one PACK inoperative?
FL250
Reference: OM Vol.2, Section 2-14
During a takeoff in icing conditions, when will pressurization begin?
The cabin will begin to pressurize when the PACKs are selected ON during the after takeoff flow/checklist.
Reference: OM Vol.1 Section 3
What is the static source of the Cabin Pressurization Acquisition Module (CPAM)?
Pitot/Static 3.
Reference: OM Vol.2, Section 2-14
What is the function of the DUMP button on the automatic pressurization controller?
The DUMP button will de-pressurize the cabin of the aircraft to an altitude of 14,500’ MSL or to the actual altitude of the aircraft, whichever is lower.
Reference: OM Vol.2, Section 2-14
What is the purpose of the pressurization/ static ports located on the lower / rear portion of the fuselage?
The purpose of the pressurization/static ports is to provide over- pressure/under-pressure relief should the cabin differential exceed 8.1 PSI or -0.3 PSI.
Reference: OM Vol.2, Section 2-14
