As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TECH SERVICES HAS RECEIVED REPORTS THAT THE FRONT SPINNER CONE WHITE SPIRAL STRIPE HAS ERODED BEYOND 50 PERCENT. ENGINE POSITION WAS NOT IDENTIFIED. ETOPS SIGNIFICANT SYSTEM. GROUNDED - YES. COMPLIED WITH ALL STEPS OF TSR. WHITE SPIRAL PAINT FOUND FADED AT LEAST 50 PERCENT ON BOTH ENG SPINNER CONES. REMOVED & REPLACED ENG 1 & ENG 2 FRONT SPINNER CONES. REF B737-800 AMM 72-21-01.