Porsche 911 Rear wheel lock up under braking Recall

Recall affects Porsche 911
Reason for recall: Under extreme circumstances rear wheel lock up could occur during heavy braking. This is due to the fitment of an incorrect brake modulator valve.
When was it announced?
Unknown
What action are Porsche taking?
Recall the affected vehicles and replace the original brake modulator valve with a modified example.
Does this affect your 911?

This issue affects 911, this particular recall is for the 911.

VIN Numbers
Not provided
Build Dates
Jan 1, 1991 - Dec 31, 1992