Accident Report Detail

Accident Summary Nr: 14498331 - EXPLOSION AND FIRE - FLAM VAPOR PRESSURE VESSEL RUPTURED

Accident Summary Nr: 14498331 -- Report ID: 0626600 -- Event Date: 10/24/1985
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
100267467	10/24/1985	2911	0	Crown Central Petroleum Corp
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
100267475	10/25/1985	1799	0	Rogers & Constructors Inc
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
100267483	10/25/1985	1799	0	Wyatt Field Services Co Inc
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
100267509	10/25/1985	1623	0	Payne And Keller Co
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
100267483	10/25/1985	1799	0	Wyatt Field Services Co Inc

Abstract: AN ALKYLATION PROCESS UNIT WAS SHUT DOWN FOR MAINTENANCE. WHILE TWO PRESSURE VESSELS CONTAINING LPG WERE BEING DEPRESSURIZED, AN EXPLOSION AND FLASH FIRE OCCURRED. THE EXPLOSION WAS CAUSED BY A PLUGGED FLARE LINE THAT LEAD TO THE OVERPRESSURIZATION OF A NEUTRALIZER DRUM AND SUBSEQUENT RUPTURE. THE FLASH FIRE WAS CAUSED BY THE IGNITION OF THE HYDROCARBONS RELEASED BY THE EXPLOSION (RUPTURE) OF THE NEUTRALIZER DRUM. THE IGNITION SOURCE WAS FOUND TO BE AN ARC BETWEEN TWO POWER LINES IN THE VICINITY OF THE UNIT. TWELVE EMPLOYEES OF THREE MAINTENANCE CONTRACTORS SUSTAINED INJURIES. SIX REQUIRED HOSPITALIZATION. TYPES OF INJURIES WERE BURNS, ABRASIONS, SPRAINS AND A FRACTURE. THE WORK BEING DONE BY THESE WORKERS HAD NO RELATION TO THE EXPLOSION OR FLASH FIRE.

Keywords: ELECTRIC ARC, ELECTRICAL, FLAMMABLE VAPORS, E GI VII, EXPLOSION, BURN, CLOTHING, FIRE, FRACTURE, MAINTENANCE

Employee Details
Employee #	Inspection Nr	Degree of Injury	Nature of Injury	Occupation
1	100267467			Occupation Not Listed
2	100267475	Hospitalized injury	Fracture	Occupation not reported
3	100267483	Non Hospitalized injury	Bruise/Contus/Abras	Occupation not reported
4	100267483	Non Hospitalized injury	Bruise/Contus/Abras	Occupation not reported
5	100267483	Non Hospitalized injury	Burn/Scald(Heat)	Occupation not reported
6	100267483	Hospitalized injury	Burn/Scald(Heat)	Occupation not reported
7	100267483	Hospitalized injury	Burn/Scald(Heat)	Occupation not reported
8	100267483	Hospitalized injury	Burn/Scald(Heat)	Occupation not reported
9	100267483	Hospitalized injury	Burn/Scald(Heat)	Occupation not reported
10	100267509	Non Hospitalized injury	Cut/Laceration	Occupation not reported
11	100267509	Non Hospitalized injury	Strain/Sprain	Occupation not reported
12	100267509	Hospitalized injury	Strain/Sprain	Occupation not reported
13	100267483	Non Hospitalized injury	Burn/Scald(Heat)	Occupation not reported

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