Make sure you have the correct chart - the E(HI)4/5
CAA Edition.
On this section of airway the Minimum Enroute Altitude is given as FL 290 - the
MEA is the Altitude (or FL) on its own - if you look at page 57 of the Enroute
Chart Legend, the altitudes are explained - 5000T is a MOCA, 4000a
is a Route MORA, MAA 13000 is a Maximum Authorized Altitude .... etc