B717 (Formerly MD-95)
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Diverted; Flight Crew Landed As Precaution; Flight Crew Landed in Emergency Condition; General Flight Cancelled / Delayed; General Maintenance Action
Aircraft
Level at FL260. Midway between ZZZ and ZZZ1 we felt a pressure bump and very soon after the CABIN RATE EAD alert illuminated. While I was running that checklist the CABIN ALTITUDE EAD alert illuminated. We donned our oxygen masks; ran the appropriate emergency checklist and performed an emergency descent per the CABIN RATE emergency checklist. We [Requested Priority Handling]; diverted to ZZZ2; and landed without further incident. Maintenance informed that a section of ducting in the tailcone separated. Maintenance also advised that there was a CPC fault detected in the FMS MAINT review.
B717 Captain reported a CABIN RATE EAD alert related to duct failure led to a diversion to an alternate airport.