DOC AIRBUS | AMM A320FCORE COMPARTMENT TEMPERATURE SYSTEM - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The primary function of the LEAP-1A core-compartment temperature-sensor is to monitor the temperature of the air below the thrust reverser cowl.
The sensing end of the core-compartment temperature sensor is put near the bleed ducting to identify leaks that occur at their primary interfaces. There is one thermocouple signal, which is routed to Electronic Engine Control (EEC) channel A only. This sensor signal is processed by the full-authority digital-engine control. The temperature value is monitored and if there is an exceedance, a fault gets triggered and the crew is alerted via the ECAM.
The indication shows on the ECAM (SD) page after 5 seconds when the temperature increases to 279.5 deg.C (535.1 deg.F) and goes out of view after 5 seconds when the temperature is less than 275.5 deg.C (527.9 deg.F).
** ON A/C NOT FOR ALL The primary function of the LEAP-1A core-compartment temperature-sensor is to monitor the temperature of the air below the thrust reverser cowl.
The sensing end of the core-compartment temperature sensor is put near the bleed ducting to identify leaks that occur at their primary interfaces. There is one thermocouple signal, which is routed to Electronic Engine Control (EEC) channel A only. This sensor signal is processed by the full-authority digital-engine control. The temperature value is monitored and if there is an exceedance, a fault gets triggered and the crew is alerted via the ECAM.
The indication shows on the ECAM (SD) page after 5 seconds when the temperature increases to 279.5 deg.C (535.1 deg.F) and goes out of view after 5 seconds when the temperature is less than 275.5 deg.C (527.9 deg.F).
2. Component Description
A. Fan Compartment Sensors
The fan overheat detector system monitors the fan zone for an increase in temperature in the event of a major leak in a duct or a complete fracture.
There are two sensors in the fan case, one at approximately the 12 o' clock position next to the starter duct and the other at approximately the 6 o' clock position next to the NAI duct.
The sensor is a duplex Resistance Temperature Detector (RTD) device containing two sensing element which are connected to only one channel of the EEC (one to EEC channel A and the other to EEC channel B).
In case of burst duct or major leak, an ECAM warning will be shown in the cockpit.
In case of one sensing element failure, a Scheduled Maintenance Report (SMR) fault will be generated for the maintenance crews.
In case of failure of both the sensing elements which means failure of the sensor, an ECAM warning associated with hot air leak detection fault will be shown in the cockpit.
The fan overheat detector system monitors the fan zone for an increase in temperature in the event of a major leak in a duct or a complete fracture.
Fan Compartment Overheat ComponentsThere are two sensors in the fan case, one at approximately the 12 o' clock position next to the starter duct and the other at approximately the 6 o' clock position next to the NAI duct.
The sensor is a duplex Resistance Temperature Detector (RTD) device containing two sensing element which are connected to only one channel of the EEC (one to EEC channel A and the other to EEC channel B).
In case of burst duct or major leak, an ECAM warning will be shown in the cockpit.
In case of one sensing element failure, a Scheduled Maintenance Report (SMR) fault will be generated for the maintenance crews.
In case of failure of both the sensing elements which means failure of the sensor, an ECAM warning associated with hot air leak detection fault will be shown in the cockpit.
B. Core Temperature Sensor
The LEAP-1A core temperature sensor is located on the engine and mounted on a core-mounted bracket.
The LEAP-1A core temperature sensor is located on the engine and mounted on a core-mounted bracket.