ETC says 21990B, bunker fuel oil
This was a 93,000 tonner.
NTSB report is NTSB-MAR-83-07, NTIS PB83-916406.
But CTX has not yet seen.
The NTSB entry above is the abstract of that report.
FSI summary references MSC 49/15 28.
Assuming the NTSB report is the more accurate.
If so, the ship was not properly prepared for hotwork on deck.
13 years after Mactra, 7 years after Sansinena,
sounds like she did not have had an IGS system.
What was a US flag 93,000 dwt tanker doing going to Dubai?