SDR 99ZZZX1592

Service difficulty report · Hub · Hiller UH12

Difficulty date
March 29, 1999
Submitted
March 26, 2000
Operation
General aviation
Make and model
Hiller UH12
Part
Hub
Part number
5143711
Condition
Cracked
Location
Main Rotor
Stage of operation
IN
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING NDT INSPECTION, FOUND A CRACK IN THE HUB GOING DOWN 0.25 INCH FROM A STUD HOLE IN THE VERTIAL BORE.

More about the Hiller UH-12