As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE POST-FLIGHT INSPECTION THAT THE RT UPPER AIRBRAKE HAD A 4 INCH CRACK ON THE TOP SKIN ALONG THE TE. NO CAUSE FOR THE CRACK WAS FOUND. REMOVED THE DAMAGED RT UPPER AIRBRAKE PN 25-8WB5-2A. INSTALLED AN OVERHAULED AIRBRAKE PANEL IAW THE AMM & RIGGED. THE ACFT WAS RETURNED TO SERVICE.