According to the news, the ac the FA wanted checked were 165 of SW aircraft.
Yes, it does appear to be the -700 variant.
Now GOL has grounded 11.
In govt testing, there is typically a validation sample size, it will be interesting if the sample size positives, warrant further testing.
Will be interesting to see how many WJ and UA ground...
Given the cost, (well, with no repair options in the AD, and none from BA,) and anticipated retirements, wonder how many will be written off.
I have not seen a -700 BCF program like the -800.