What was found
SPRINGS, PN 69-77855-1, ARE BROKEN IN THE AUXILIARY BRAKE SYSTEM. IMPROPER HEAT-TREATING, AUSTENITE, FATIGUE, AND INCREASED SPRING COIL STRESSES.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SPRINGS, PN 69-77855-1, ARE BROKEN IN THE AUXILIARY BRAKE SYSTEM. IMPROPER HEAT-TREATING, AUSTENITE, FATIGUE, AND INCREASED SPRING COIL STRESSES.