WHAT THIS FLAG INDICATES IN THE NEW LEAP 1A ENGINE ?WHAT IS PREVENTING FAN COWL DOOR LOSS?

Fan cowl door misfortune occasions are still reported to Airbus. In all cases, the fan cowl doors. This article provides an update on the design and procedure improvements introduced on the Airbus fleet to prevent fan cowl door loss events.

WHAT IS PREVENTING FAN COWL DOOR LOSS?

One of the best solution in the system that is in A320NEO CFM LEAP 1A Engine, After aeronautics encountered some fan cowl opening during flight occurrences, the new CFM LEAP 1A Engine accompanies a component to forestall this condition. It comprise of Electrical part for ECAM indication and Mechanical Flag seen during walk around examination before takeoff.

In addition to the cowl position monitoring, a prevention flag extends mechanically from the surface of the left hand fan cowl when the forward latch is opened to warn the ground personnel and the flight crew that the latch is not closed on A320neo equipped with CFM LEAP-1A engines.The Mechanical system (CLP SYSTEM) is ONLY installed on latch No.1, When latch No.1 is in unlatched configuration it triggers a red flag. This red flag is in a high position to avoid personnel injuries and is visible during preflight walk-around inspection.

Airbus is considering implementing a cockpit-warning system for the A320neo which would alert pilots if the engine fan-cowl doors are not secure.The Electrical Cowl Loss Prevention system provides fan cowl doors open/close signals for cockpit indication.

The System has one Proximity Sensor for each fan cowl latch. if any of the 3 fan latches is open, an amber ECAM memo ”ENG 1 COWL” in ENGINE WARNING DISPLAY (EWD) . If the FADEC system was energized, due to engine start or crank or for maintenance, the memo will be converted to Level 2 ECAM Caution ”ENG 1 FAN COWL NOT CLSD”

Author: TECH SINGH Urs

TECH LEARNING WITH NEW VISION

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