SDR 2016F00049

Service difficulty report · Indicator

Difficulty date
January 29, 2016
Submitted
January 29, 2016
Operation
General aviation
Part
Indicator
Condition
Out Of Tolerance
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

DURING THE REPAIR PROCESS, OVERPRESSURE INDICATOR TEST RESULTS WERE OUT OF TOLERANCE. A SETTING WAS DONE. DURING THE REMOVAL OF THE OVERPRESSURE INDICATOR FOR THE SETTING, SOME WASHERS FOUND ARE NOT IAW CMM 30-21-42 ANS IPL LINKED. ON 6 WASHERS INSTALLED, 4 HAVE GOT INTERNAL AND EXTERNAL DIAMETERS TOO LARGE AND ARE TOO DEEP.