As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT AIR PRESSURE INDICATED ZERO OUTPUT. MAINTENANCE TECH FOUND BROKEN SHAFT ON DRY AIR PUMP. PROBABLE CAUSE: VIBRATION FROM ENGINE. C/A: MFG TO INVESTIGATE PUTTING STIFFER LORD MOUNTS ON ENGINE FRAME TO REDUCE ENGINE VIBRATION TO OTHER COMPONENTS.