Service difficulty report · Support · Cessna 401

Difficulty date
November 5, 2010
Submitted
November 17, 2010
Operation
General aviation
Aircraft
N37WC
Make and model
Cessna 401
Aircraft serial
4010183
Aircraft time
5,750 hours
Engine
Cont IO520*
Part
Support
Part number
08221805
Condition
Detached
Location
Mlg
Part time
5,750 hours
Stage of operation
LD
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

2 OF THE 3 BOLTS ATTACHING THE UPPER HALF OF THE LT MLG SIDE BRACE SUPPORT BRACKET WERE FOUND MISSING. THE STRESS IMPOSED ON THE REMAINING BOLT CAUSED IT TO BE PULLED THROUGH THE ATTACHING STRUCTURE. THE FAILURE OF THIS ATTACHMENT CAUSED THE GEAR TO NOT ACQUIRE A DOWN AND LOCKED POSITION. INSPECTION OF THE ATTACHMENT ON THE RT GEAR REVEALED 1 OF THE 3 BOLTS TO BE QUITE LOOSE. THE DOUBLERS, PN 0822580-1, WHICH ARE TO BE INSTALLED IN CONJUNCTION WITH THE BOLTS, WERE NOT FOUND TO BE INSTALLED.

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