737 air tanker undergoing FAA testing

(Originally published at 3:47 p.m. MDT June 17, 2018)

One of Coulson’s recently converted 737’s, Tanker 137, is in San Bernardino for certification testing by the FAA.


(UPDATED at 1:38 p.m. MDT June 21, 2018)

Coulson may have seen Donn’s question about the loading ports. Here is what they posted on Facebook June 20:

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