As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT 240GL AIR RETURN FLT 5087 "DEN" 08/17/08 PILOTS REPORTED THE PNEUMATIC PRESSURE WAS EXCEEDING REDLINE DURING CLIMBOUT AT FULL POWER SETTINGS. MAINTENANCE ADJUSTED PNEUMATIC REGULATOR AS REQUIRED IAW 1900D MM 36-00-01. OPERATIONAL CHECK WAS GOOD.