The MESA is the storage compartment provided just to the left (facing the hatch) of the ladder that descends from the ascent stage to the lunar surface. Here's a close up of the MESA on the Lunar Module 5, Eagle.
The MESA is the storage compartment provided just to the left (facing the hatch) of the ladder that descends from the ascent stage to the lunar surface. Here's a close up of the MESA on the Lunar Module 5, Eagle.