Service difficulty report · Rib · Piper PA31350

Difficulty date
February 27, 2005
Submitted
April 1, 2005
Operation
General aviation
Make and model
Piper PA31350
Aircraft time
10,187 hours
Engine
Lyc TIO540J2BD
Propeller
Hartzl HCE3YR2A
Part
Rib
Part number
437430001
Condition
Cracked
Location
Rt Elevator
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

(CAN) DURING ROUTINE INSPECTION THE AME FOUND THE TIP RIB ON THE RT ELEVATOR CRACKED. THE CRACK WAS LOCATED IN THE BEND WHERE THE RIB TRANSITIONS INTO THE FLANGE AT RIVET NR7 FROM THE TRAILING EDGE. UPON REMOVAL IT WAS DISCOVERED THAT THESAME CRACK COULD BE FOUND ON TOP AND BOTTOM SIDES OF THE RIB. IN ADDITION THE FLANGE WAS CRACKED AT 90 DEGREES TO THE BEND, CREATING A CRACK IN THE SHAPE OF THE LETTER.

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