What was found
DURING CLIMB THE TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED. AIRCRAFT WAS GROUNDED. EMERGENCY DECLARED, LANDING UNEVENTFUL. R & R THE RT PNEUMATIC PILOT PRESSURE REGULATOR VALVE, BROKEN SENSE LINE, CHAFED SENSE LINE, STRIPPED FITTING & CRACKED SUPPORT BRACKET IAW AMM 36-10-02. OPS & LEAK CHECKED NORMAL IAW AMM 36-10-00.