As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT, A/C EXPERIENCED HIGH FREQUENCY VIBRATIONS DURING SPEED BRAKE APPLICATIONS. ONCE LANDED IN HKG, STATION NOTICED THE #6 SPEED BRAKE PANEL ASSY DAMAGED / SEPERATED IN FLIGHT.(<P>R/R #6 SPOILER IAW AMM 27-62-01 AND OPERATIONAL CHECKS NORMAL</P>)