What was found
FVR UNSATISFACTORY BOTH HF UNREADABLE. GROUNDED - YES. REMOVED HF1 AND HF2 COUPLERS. DISCONNECTED FEEDLINE TUBE AT UPPER END. CLEANED, RECONNECTED, AND SEALED UPPER ATTACH POINT. BONDING RESISTANCE WITHIN LIMITS REF B737-800 AMM 55-33-11-400-801. HF ANTENNA BONDING CHECK WITHIN LIMITS REF AMM 23-11-51-760-801. REINSTRALLED HF 1 COUPLER REF AMM 23-11-61-400-801. REMOVED AND INSTALLED NEW HF 2 COUPLER REF AMM 23-11-61/401. GROUND VERIFICATION SUCCESSFUL, INSTALLATION TEST PASSES REF AMM 23-11-61-400-801.