Service difficulty report · Housing · Boeing 727*

Difficulty date
July 7, 2000
Submitted
August 28, 2000
Operation
Air carrier
Make and model
Boeing 727*
Part
Housing
Part number
401606223
Condition
Cracked
Location
Seal Plate
Component
Elev Feel Comput · Moog
Component part number
401602728A
Stage of operation
NR
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 ASSY IS CRACKED ON THE SEAL PLATE SEALING SURFACE ON THE LEFT SIDE OF THE HOUSING, SYSTEM ''B''. POSSIBLE CAUSE, HOUSING ASSY IS MADE FROM MAGNESIUM ALLOY AND IS EXTREMELY SUSPECTIBLE TO DISSIMILAR METAL CORROSION AND CRACKS. (X)

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