SDR 96ZZZX4006

Service difficulty report · Casting

Difficulty date
July 1, 1996
Submitted
March 26, 2000
Operation
General aviation
Part
Casting
Part number
3431
Condition
Creep
Location
Atlimter
Component
Unitedinst · 5934P1
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

THIS INSTRUMENT WAS A NEW FACTORY SEALED ALTIMETER. TWO SHAFT END-SHAKES WERE UNDER THE MINIMUM .0020 INCH CALLED OUT IN THE OVERHAUL MANUAL. THEY MEASURED .0006 INCH AND .0010 INCH. THE MANUFACTURER HAS INDICATED AN END-SHAKE OF .0004 INCH OR LESS CAN CAUSE A POINTER HANG-UP DURING A NORMAL SPECIFIED COLD TEST. END-SHAKE CHANGES OF .0002 INCH TO .0003 INCH HAVE BEEN MEASURED DURING DIFFERENT PRESSURE SETTINGS ON THE ALTIMETER.