As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED LEVEL 3 AIR MAINIFOLD FAIL. ACCOMPLISHED CHECKLIST. NO FURTHER ACTION. ALERT EXTINGUISHED 30 MIN LATER. R & R NR 1 SYSTEM FAIL DETECTOR PRESSURE SWITCH IAW MM 36-23-03-4. PERFORMED ADJUSTMENT AND TEST PER MM 36-23-03-5. CHECKED GOOD, OK FOR SERVICE.