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Thrust Reverser
Aft movement of reverser sleeves causes blocker doors to deflect fan air forward through fixed cascade vanes.
Hydraulic system
Hydraulic pressure for the operation of engine 1 and engine 2 thrust reversers comes from hydraulic systems A and B respectively. In the event of a failure, the affected thrust reverser can be operated using the standby hydraulic system.
Deployment
- either RA <10'; or
- air/ground sensor in ground mode
Indications
| Location | Reason | |
| REV | upper DU | reverser sleeve has moved from stowed position |
| REV | upper DU | reverser in deployed position |
| REVERSE | aft overhead panel | reverser is commanded to stow until isolation valve closes (~10s) *note that if illuminated for >12s, MASTER CAUTION and ENG annunciator lights illuminate (recycling to clear the fault is allowed) |