As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALTITUDE DISAGREE AND AIRSPEED DISAGREE EICAS MESSAGES ILLUMINATED AT FL 270. CAPTAIN ALTIMETER 500 FT LOW AND CAPTAIN AIRSPEED INDICATOR 8 KTS SLOW. STANDBY INSTRUMENTS AND FIRST OFFICER ALTIMETER AND AIRSPEED INDICATOR MATCHED. PERFORMED LEAK CK AND FOUND AIR LEAK AT STATIC LINE QUICK DISCONNECT FITTING (S1) AT CAPT PITOT/STATIC TUBE. R&R CAPT PITOT/STATIC TUBE, ALL SYSTEM TEST PASSED AND PITOT HEAT TEST PASSED PER AMM 34-11-01-4 AND 34-11-00-5.