A nacelle (55) for a gas turbine engine (10), the engine (10) comprising
accessories (34) mounted to a fan casing (28) and a core engine (9), the
nacelle (55) substantially surrounds the engine (10) and comprises an
intake (12) and a thrust reverser unit (31). The thrust reverser unit
(31) is formed by two generally C-shaped portions (31a, 31b). The thrust
reverser unit (31) is openable to provide access to the accessories (34)
and the core engine (9). The nacelle (55) further comprises a fan
containment casing (33) that is integral with the intake (12).