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WASHINGTON DC 20374-5060

Port Chicago Naval Magazine Explosion on 17 July 1944:
Court of Inquiry: Finding of Facts, Opinion and Recommendations, continued...


1. That the Naval and Coast Guard personnel killed or injured in this explosion and listed in the Finding of Facts herein were killed or injured in line of duty and not as a result of their own misconduct.

2. That the civil personnel listed in e Finding of Facts herein as having been killed by the explosion were killed while performing their regularly assigned duties and in the service of their country.

3. That the loss of and damage to government property and privately-owned vessels caused by this explosion were incident to the prosecution of the war.

4. That the amount of damages caused to government-owned property is $9,892,034.74.

5. That the amount of damage suffered by the M.S. REDLINE does not exceed the sum of $136,840.00, the cost of repairs, and $11,437.57, the expenses incident thereto, totaling $149.277.57, which is greater than the sound value of the vessel, which did not exceed $150,000.00, less the value of the vessel in her damaged condition.

6. No opinion is expressed as to the amount of damages suffered as the result of death. personal injuries or by small craft, as these claims have been delivered to the Board of Investigation for consideration.

7. That the establishment of a facility such as the U.S. Naval Magazine, Port Chicago, was necessary in this area and the location was well chosen.

8. That the development of the Naval Magazine, Port Chicago, to maximum efficiency and capacity as a loading facility was retarded by the following circumstances which were beyond the control of the Officer in Charge, Naval Magazine, Port Chicago, and the Commanding Officer, Naval Ammunition Depot, Mare Island, California:


9. That the Commanding Officer, Naval Ammunition Depot, early realized the necessity for expansion, for trained officers and the importance of collateral equipment. He made every reasonable effort to obtain these.

10. That the operation of the Naval Magazine, Port Chicago, as an annex of the Naval Ammunition Depot, Mare Island, is sound and proper.

11. That the internal organization at Port Chicago is sound and proper.

12. That the training of the officers was the best possible under existing circumstances. That the dissemination of pertinent information required by the officers in the performance of their duties was adequate.

13. That the officers at Port Chicago have realized for a long time the necessity for great effort on their part because of the poor quality of the personnel with which they had to work. They worked loyally, conscientiously, intelligently, and effectively to make themselves competent officers and to solve the problem of loading ships safely with the men provided.

14. That the enlisted personnel comprising the ordnance battalions at Port Chicago were poor material for training in the handling and loading of munitions, and required an unusual amount of close supervision while actually engaged in this work.

15. That the training and supervision of these men was made even more difficult by the lack of petty officers or petty officer material.

16. That a very sustained and vigorous effort was made to train these men in the proper handling of munitions. Despite this, there was a considerable history of rough and careless handling by individuals. A marked and continuing improvement was discernible in recent months.

17. That the methods used in training these men were the most effective possible under the circumstances.

18. That in the months immediately preceding the explosion real progress had been made toward a better training program for officers and men. This work had been retarded by a lack of competent senior officers.

19. That the morale of the station was improving steadily as a result of the completion of the gymnasium and bachelor officers' quarters, and provision for additional transportation.

20. That the civil service personnel were about the average available for the ratings held and were in general of mediocre ability.

21. That the policies and doctrines followed were sound, well thought out, and aimed at generally getting essential war work done as safely as possible.

22. That the security measures in effect were adequate.

23. That the liaison between the officers, of the Port Director, Captain of the Port, Service Force Subordinate Command, and the Naval magazine, Port Chicago, was satisfactory.

24. That the pre-loading inspections made by representatives of the Captain of the Port and of the Port Director were not always thorough or well-times in relation to fuelings. This lack of thoroughness was not a contributing cause to the explosion under investigation.

25. That the pier was well laid out for the work to be done. A pier which allows tandem berthing would be preferable, since it results in a lesser concentration of explosives and personnel.

26. That the loading procedures and the gear used at Port Chicago were safe and in accordance with standard naval practice and did not violate naval safety precautions.

27. That the few practices listed in the Finding of Facts which were contrary to the Coast Guard shiploading regulations were not dangerous and did not increase the hazards.

28. that there exists no publication or instruction for naval establishments which adequately specified the methods to be used in handling high explosives. Regulations as they exist are negative in nature and prohibitory.

29. That the Coast Guard instructions are not practicable in their entirety in that a literal compliance with all requirements would so restrict operations that loading could not be accomplished at a reasonable rate.

30. That where any regulation cannot be followed, it should be changed rather than ignored.

31. That it is possible to draw up a practicable set of loading instructions with no sacrifice to safety.

32. That the details of loading procedure at Naval Magazine, Port Chicago, were as safe, and in most cases safer, than those in use at many other points.

33. That the Coast Guard detail under the conditions it was originally assigned at Naval Magazine, port Chicago, did not contribute to the efficiency or safety of the loading operations.

34. That this Coast Guard detail could contribute to the efficiency of the operations provided: --


35. That the loading divisions were well organized for the work to be accomplished, insofar as the availability of petty officers permitted.

36. That the working hours and schedules were well planned and reasonable.

37. That the officer supervision during loading operations was adequate.

38. That the petty officer supervision was inadequate both in numbers and quality.

39. That the posting of the amounts loaded by each division did not operate to increase the hazards of loading.

40. That a loading rate of 10 tons per hatch per hour with the personnel available was high but a goal that could be attained with proper training and supervision.

41. That the loading rate attained at Port Chicago was approximately that attained by commercial stevedores at Naval Ammunition Depot, Mare Island.

42. That the S.S. E. A. BRYAN was seaworthy and in a satisfactory condition to receive explosive cargo on arrival at the Naval Magazine, Port Chicago.

43. That the S.S. QUINAULT VICTORY was seaworthy and in a satisfactory condition to receive explosive cargo on arrival at the Naval Magazine, Port Chicago.

44. That the loading of the S.S. E. A. BRYAN up to the time of the explosion was proceeding in a normal manner, using methods and gear that are considered safe and in accordance with good practice.

45. That the quantities of explosive vapors probably present, the absence of any evidence of fire or other igniting agent, the speed with which the explosion was transmitted indicate to the court that the explosive qualities of the oil in the S.S. QUINAULT VICTORY did not cause or contribute to the explosion.

46. That in an explosion of this magnitude where substantially all the possible initiating agents were destroyed and all eyewitnesses at the point of initiation were lost, it is impossible to determine positively the agent or act which caused the explosion.

47. That the following unusual circumstances existed just prior to the explosion, any one of which might have been a contributing cause:


48. That the weather conditions in no way contributed to the explosion.

49. That there was no unnecessary concentration of explosives or personnel on the pier at the time of the explosion.

50. That the possibility exists that a supersensitive ammunition component, such as is defined below, was present and that such a component was detonated either in the ordinary course of loading operations or as a result of rough or careless handling by an individual or individuals.

The term "supersensitive component" as herein used is defined as:


The term "rough or careless handling" as herein used is defined as handling which would subject a component or its container to a severe blow or cause deformation of the case or container by the application of a concentrated stress. Examples of this would be a bomb which is allowed to roll against and strike another bomb, a hoist which is allowed to swing against the ship's side or a hatch conning, or a hoist which is dropped from a height or is allowed to strike the deck a hard blow in lowering, or the arrangement of the load in the net or sling which is such as to impose concentrated stress on one or more of the components of the load.

51. That the probable causes of the initial explosion listed in the order of probability are:


52. That the initial explosion occurred in the vicinity of the inboard end of the pier near the bow of the E. A. BRYAN, probably among components being handled on the pier or being loaded into No. 1 or 2 holds. The sharp distinct sound and the brilliant white flash lead to the belief that the initial detonation was that of an M-7 cluster or Mark 47 depth bomb which was, in turn immediately propagated to other explosives on the pier, producing the first explosion.

53. That the second and larger explosion consisted of the detonation -- substantially simultaneously -- of the ammunition in ten holds of the E. A. BRYAN. That this was initiated by the detonation of a component or group of components, or hot fragments from the first explosion which entered the holds either through the ship's side or through the open hatches.

54. That the pattern of fragment distribution would appear to indicate that the point of initiation of the second explosion was in one of the forward holds of the E. A. BRYAN and that the explosives in the after holds suffered sympathetic detonation almost immediately so that the ship in effect constituted a large bomb.

55. That there was an initial major explosion followed by minor explosions and burning for a period of from three to six seconds and culminating in a mass explosion of the entire cargo of the E. A. BRYAN and all remaining explosives. This final explosion was by far the greater; larger than any which preceded it.

56. That from an examination of the damage to structures and facilities resulting from the explosion, certain specific requirements of standards of construction for such a facility are indicated as set forth under "Recommendations".

That the behavior of the officers and men after the explosion was exemplary and reflects credit on them and on their commanding officer.

58. That other U.S. Government agencies, the agencies of the State of California, the agencies of municipalities, civilian activities, and individual citizens in the area, were most prompt and helpful in their tenders of assistance.

59. That the explosions and the consequent destruction of property, death and personal injuries were not due to the fault, negligence or inefficiency of any person in the naval service or connected therewith or any other person.

60. That the explosions were not due to any fault, negligence or inefficiency of the interested party, Captain Nelson H. Goss, U.S. Navy (Retired).

61. That the explosions were not due to any fault, negligence or inefficiency of the interested party, Captain Merrill T. Kinne, U.S. Naval Reserve.


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March 24, 1999