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Precis File
SHIP NAME: Choyo Maru KEY: NUM. ENTRIES: 4
source LMIU
type C
volume
material
dead
link

Broke in two, abandoned, adrift Dec 20 1979 in 7 45 20 S 115 09 E Sank Dec 30 in 8 59 50 S 115 46 05 E.


source HOOKE
type C
volume
material
dead
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While on a ballast passage from port Walcott to Singapore, the hull of the 76,123 dwt Japanese motor tanker, Choyo Maru, suddenly broke apart in the amidship area when about 17 miles north of Bali Island in lat 07.45S, long 115.09E on December 21, 1979. There was no explosion. The crew after abandoning ship was safely picked up by an Indonesian vessel. Without completely breaking in two, the Choyo Maru drifted with the current for nine days until sinking in lat 09.00S, long 115.46E on December 30.


source Fairplay 1986-07-10
type D
volume
material
dead
link

Three pictures of the ship jack-knifing in sag. The hinge is just forward of the manifold. Cant tell for sure but looks like ship was in ballast, which matches Hooke. No evidence of fire. Weather is flat calm. Lifeboats are gone. Accompanying text says In this case the salvors Selco never had a chance, as the owners did not contact them until two days after the vessel broke in half. In addition when the call came the only information provided was that the ship "required a tow after breakdown" and it was not until the then salvage master Hugh Murray arrived on the scene that a true picture could be drawn.


source CTX
type C
volume
material
dead
link

This loss is a mystery. It's likely the ship was sunk on purpose. A tanker in ballast should hog not sag. Market was very bad at the time.

CTX had this casualty as a tank cleaning explosion, but I dont know why. Changed to match Hooke and Selco, 2008-01-24.