Junk Plant Palo Verde Diesel Generator Explosion

They are lucky they didn't kill a guy. Will they have to shutdown? This is a three plant facility...I believe the largest nuclear facility is the USA.

Facility: PALO VERDE Region: 4 State: AZ Unit: [ ] [ ] [3] RX Type: [1] CE,[2] CE,[3] CE NRC Notified By: ANDREW LISTON HQ OPS Officer: MARK ABRAMOVITZ	Notification Date: 12/15/2016 Notification Time: 06:55 [ET] Event Date: 12/15/2016 Event Time: 04:10 [MST] Last Update Date: 12/15/2016
Emergency Class: ALERT 10 CFR Section: 50.72(a) (1) (i) - EMERGENCY DECLARED	Person (Organization): RAY KELLAR (R4DO) BILL DEAN (NRR) KRISS KENNEDY (R4RA) BERNARD STAPLETON (IRD)

Unit	SCRAM Code	RX CRIT	Initial PWR	Initial RX Mode	Current PWR	Current RX Mode
3	N	Y	100	Power Operation	100	Power Operation

Event Text

ALERT DECLARED - CATASTROPHIC FAILURE OF AN EMERGENCY DIESEL GENERATOR "The following event description is based on information currently available. If through subsequent reviews of this event additional information is identified that is pertinent to this event or alters the information being provided at this time a follow-up notification will be made via the ENS or under the reporting requirements of 10CFR50.73. "During a scheduled surveillance test run of the PVNGS [Palo Verde Nuclear Generating Station] Unit 3 'B' Train Emergency Diesel Generator, there was a catastrophic failure of a piston to include crankcase damage and diesel trip. The Emergency Plan has been entered and an ALERT was declared at 0410 [MST] on 12/15/16 based on an explosion resulting in visible damage to a safety system required for safe shutdown. The cause of the failure is unknown at this time. PVNGS Fire Department responded and no fire was observed. Unit 3 remains on line at 100% power. No other safety functions are impacted." No personnel injuries occurred. The unit is in a ten day technical specification on an emergency diesel generator being inoperable. The licensee notified the NRC Resident Inspector. Notified DHS, DOE, EPA, FEMA, NICC, USDA, HHS, FDA, NSSA, Mexico, and OIP (Skeen). * * * UPDATE AT 0947 EST ON 12/15/2016 FROM MICHAEL GOODRICH TO MARK ABRAMOVITZ * * * "This serves as the notification of the termination of Alert HA2.1 declared at 0410 MST at Palo Verde Nuclear Generation Station. The event terminated at 0636 MST." The licensee will notify the NRC Resident Inspector. Notified R4DO (Keller), NRR EO (Miller), IRD (Stapleton), DHS, DOE, EPA, FEMA, NICC, USDA, HHS, FDA, NSSA, Mexico, and OIP (Skeen).