As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) MFG ENGINEERING DISCOVERED A DISCREPANCY BETWEEN THE APPROVED OVERBOARD DISCHARGE INDICATOR BLOW-OUT PRESSURE AND THE ACTUAL OVERBOARD DISCHARGE INDICATOR BLOW-OUT PRESSURE FOR OPERATOR. THE OVERBOARD DISCHARGE INDICATOR, PN 179001, BLOW-OUT PRESSURE WAS LAST APPROVED AS 40 +/- 20 PSI IN REV A01. CURRENT REV B03 STATED AS 105-155 PSI.