Limitations - LIM-21 Air Conditioning / Pressurization / Ventilation

Question 1

028- Air Conditioning:

Ram Air Inlet Opening

LIM-21-21_10

Answer 1

Only Open if Differential Pressure is Lower Than

— 1 PSI

Question 2

029- Air Conditioning:

Air Conditioning With LP Ground Unit

LIM-21-21_10

Answer 2

• Do Not Use Conditioned Air Simultaneously from Packs

and LP Ground Unit

To avoid Chattering of the Non-Return Valves)

• Airflow Supplied by the Ground Cart shall Not Exceed

— 1.2 Kg/Sec

Question 3

030- Air Conditioning:

APU With HP Ground Unit

LIM-21-21_10

Answer 3

Do Not Use HP Ground Unit when APU Supplies Bleed Air

to Avoid Bleed System Damage

Question 4

031- Pressurization:

Cabin Pressure Maximum Differential Pressure

LIM-21-21_20

Answer 4

Maximum Positive Differential Pressure

— 9.0 PSI

Maximum Negative Differential Pressure

— -1 PSI

Question 5

032- Pressurization:

Cabin Pressure Safety Valve Settings

LIM-21-21_20

Answer 5

Safety Relief Valve Setting

— 8.6 PSI

Max Δp and Safety Valve Setting Tolerance

— ± 7 hPa

Question 6

033- Ventilation:

Avionics Ventilation Temp.

LIM-21-21_30

Answer 6

OAT = 49 °C Time Limit – No Limitation

OAT = 55 °C Time Limit – 2 h

OAT = 60 °C Time Limit – 1 h

OAT = 64 °C Time Limit – 1/2 h

Question 7

034- General:

Auto Pilot Function:

Min. Height with SRS

LIM-22-10

Answer 7

Minimum Height for use of Autopilot on TakeOff with SRS

— 100 Ft AGL

(FMGS Logic Prevents the Autopilot from Engaging During the 5 s After Lift-Off)

Question 8

035- General:

Auto Pilot Function:

Minimum Height for App. Use on A320

LIM-22-10

Answer 8

Minimum Height for Use of the Autopilot in:

* Straight-in Non-Precision Approach

— Applicable MDA (MDH)

* Straight-in LNAV/VNAV approach

— Applicable DA

* Circling approach

— Applicable MDA -100 Ft (or MDH -100 Ft)

* ILS Approach when CAT2/CAT3 Not Displayed On FMA

— 160 Ft AGL

* Go-Around (AP or FD Engagement)

— 100 Ft AGL

* All other phases

— 500 Ft AGL

Question 9

036- General:

Auto Pilot Function:

Minimum Height for App. Use on A321

LIM-22-10

Answer 9

Minimum Height for Use of the Autopilot in:

* Straight-in Non-Precision Approach

— Applicable MDA (MDH)

* Straight-in LNAV/VNAV approach

— Applicable DA

* Circling approach

— Applicable MDA -100 Ft (or MDH -100 Ft)

* ILS Approach when CAT2/CAT3 Not Displayed On FMA

— 160 Ft AGL

* Go-Around (AP or FD Engagement)

— 100 Ft AGL

* All other phases

— 900 Ft AGL

Question 10

037- General:

Auto Pilot Function:

Use of the AP or FD in OPEN DES or DES Mode on A320

LIM-22-10

Answer 10

Is not Permitted in Approach,

Unless the FCU Altitude is ≥MDA (MDH) or 500 Ft,

Whichever is the Highest

Question 11

038- General:

Auto Pilot Function:

Use of the AP or FD in OPEN DES or DES Mode on A321

LIM-22-10

Answer 11

Is not Permitted in Approach,

Unless the FCU Altitude is ≥MDA (MDH) or 900 Ft,

Whichever is the Highest

Question 12

039- General:

Flight Management Function:

RNP accuracy with GPS PRIMARY

LIM-22-10

Answer 12

With AP ON in NAV

En Route — 1.0 NM

In Terminal Area — 0.5 NM

In Approach — 0.3 NM

Question 13

040- General:

Flight Management Function:

Accuracy Demonstrated Without GPS PRIMARY

LIM-22-10

Answer 13

The Accuracy has been Demonstrated Provided that:

• The Appropriate RNP Value is Checked or Entered

on the MCDU, and HIGH Accuracy is Displayed

Question 14

041- General:

Flight Management Function:

Navigation Accuracy f() Without GPS PRIMARY

LIM-22-10

Answer 14

Navigation Accuracy is a Function of Ground Radio NAVAID Infrastructure, or Elapsed Time Since the Last Radio Update

Question 15

042- General:

Flight Management Function:

FMGS Approval for Use

LIM-22-10

Answer 15

FMGS Approval is Based on the Assumption that the

Navigation Database has been Validated for Intended Use

Question 16

043- General:

Flight Management Function:

Fuel, Time Pred./Perf. Info

LIM-22-10

Answer 16

Fuel, Time Predictions / Performance Information is

Provided for Advisory Purposes Only

Question 17

044- General:

Flight Management Function:

NAV Mode Use

LIM-22-10

Answer 17

NAV Mode may be used After TakeOff, Provided

FMGS Runway Updating has been Checked

Question 18

045- General:

TakeOff In GPS Primary

LIM-22-10

Answer 18

For Certain Airports an Incorrect NAV Guidance may Occur After TakeOff

GPS Must Be Deselected for TakeOff in this cases, Until a Safe Altitude is Reached

Question 19

046- General:

Use of NAV and Final App Modes for Non-Precision Approach:

CAN vs CANNOT

LIM-22-10

Answer 19

FINAL APP Mode may be Used for xxx Approaches:

VOR, VOR/DME, NDB, NDB/DME or RNAV (Including GPS)

FINAL APP Mode Shall NOT be Used for xxx Approaches:

ILS, LOC, LOC-BC, LDA, SDF or MLS

Question 20

047- General:

Use of NAV and Final App Modes for Non-Precision Approach:

Min MDH/DH

LIM-22-10

Answer 20

FINAL APP Mode with GPS PRIMARY has been Demonstrated Down to MDH/DH:

— 250 Ft

Question 21

048- General:

Use of NAV and Final App Modes for Non-Precision Approach:

RNAV Approach Without GPS PRIMARY

LIM-22-10

Answer 21

RNAV Approach Without GPS PRIMARY can be Performed if:

• The Radio NAVAID Coverage Supports the RNP Value
• HIGH Accuracy is Displayed on the MCDU with the

Specified RNP

• Operational approval is obtained

Question 22

049- General:

Use of NAV and Final App Modes for Non-Precision Approach:

GPS Approach

LIM-22-10

Answer 22

For GPS Approach, GPS PRIMARY Must be Available

Question 23

050- General:

Non-Precision Approaches With Engine-Out:

Type of App Authorised

B-HSD to B-HSN

B-HTD to B-HTK

LIM-22-10

Answer 23

FINAL APP, NAV V/S, NAV/FPA are Prohibited with:

— N-1 Operations

Only FD Use is OK

Question 24

051- General:

Non-Precision Approaches With Engine-Out:

Type of App Authorised

B-HSO to B-HSU

LIM-22-10

Answer 24

NO APP Limitations in N-1 Operations