Text in force at CS29-12: from CS29-0, effective 14 Nov 2003.
All surfaces aft of, and near, engine compartments and desi gnated fi re zones, ot her than tail surfaces not subj ect to heat, flam es, or sparks em anating from a desi gnated fi re zone or engine compartment, must be at least fire resistant.
ED Decision 2003/016/RM · Source