My friend has an acoustic-electric martin (don't know the model, but its all solid wood, rosewood i think, and has fishman aura electronics). Anyways, the heel of the neck is detaching from the body. Here is a picture:


Is this something with the truss rod? What else could it be? Thanks
My Gear:

Gibson SG Standard (heritage cherry)
Traynor YCV40WR
Korg Pitchblack
Fulltone Fulldrive 2

Blackstar HT-5 mini-stack
Fender MIM Strat (black)
Dunlop Crybaby
Can't view the picture
ProTone Pedals: Attack Overdrive
Fractal Audio: AxeFX 2
Engl: Fireball 60
Zilla: Fatboy 2x12
Carvin: DC700
Carvin: Vader 7
Schecter: KM-7 MKii
Schecter: Banshee 8 Passive
Jackson: DK2M