As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: APU BLEED LEAK FROM ENGINE #1 AND #2. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO LAS WHERE IT LANDED SAFELY WITHOUT FURTHER INCIDENT. REPLACED #2 ENGINE BLEED PRESSURE REGULATOR VALVE AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 36-12-51.