Service difficulty report · Bracket · Piper PA28181

Difficulty date
January 16, 2019
Submitted
January 16, 2019
Operation
General aviation
Aircraft
N117BC
Make and model
Piper PA28181
Aircraft serial
287790565
Aircraft time
1,342 hours
Part
Bracket
Part number
79553800801
Condition
Corroded
Location
Zone 100
Part time
1,342 hours
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

DURING WINDSHIELD REPLACEMENT IT WAS DISCOVERED THAT THE LOWER PILLAR TO CABIN CORNER FITTINGS PN 79553-800 ,-801 WERE SEVERELY CORRODED ALONG WITH SOME OF THE SURROUNDING ATTACHING STRUCTURE. THE FITTINGS WERE CORRODED SO BADLY THAT PITTING EXTENDED COMPLETELY THROUGH THE LEFT FITTING AND 90% OF THE RIGHT FITTING. THE ATTACHING BOLT HEADS ON THE RIGHT FITTING WERE DISINTEGRATED AND THE BOLT SHANK WAS COMPROMISED TO 60% OF ITS THICKNESS. THE RIGHT SIDE BOLT HEADS WERE CORRODED TO 60% OF THE ORIGINAL DIMENSION. PICTURES AVAILABLE ON REQUEST.

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