Service difficulty report · Housing · Boeing 737*

Difficulty date
November 20, 2001
Submitted
December 20, 2001
Operation
General aviation
Make and model
Boeing 737*
Part
Housing
Part number
511531
Condition
Cracked
Location
Shuttle Valve
Stage of operation
IN
How discovered
V
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

HOUSING IS CRACKED INSIDE ONE OF THE BOLT MOUNTING HOLES. FATIGUE, DEFECT IN THE IN THE CASTING OF THE HOUSING AND /OR OVERTORQUING OF BOLT ON INSTALLATION.