As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MSY INFLIGHT DFW TO TPA. CREW REPORTED RIGHT HAND CONSTANT SPEED DRIVE LOW PRESSURE INDICATION. APU WOULD NOT START. DIVERTED TO MSY AND LANDED WITHOUT INCIDENT. REPLACED CONSTANT SPEED DRIVE. SYSTEM GROUND CHECKED NORMAL OPERATION. (CLOSED)