What was found
SIDE LOAD STRESSES ON MLG ASSEMBLIES THAT ARE TRANSMITTED THROUGH THEIR RETRACT LINK ATTACH FORGING TO THE WING SPAR AREA ARE CAUSING FATIGUE CRACKS TO FORM IN VERTICAL FLANGES OF WS 49.25 LT AND RT AFT RIBS, AND FORWARD RIBS.
- Difficulty date
- May 13, 2016
- Submitted
- June 3, 2016
- Operation
- General aviation
- Aircraft
- N4513T
- Make and model
- Piper PA28R200
- Aircraft serial
- 28R7235073
- System (JASC)
- 5711 · Wing Spar
- Part
- Rib
- Part number
- 78475004
- Condition
- Cracked
- Location
- Wing
- Part time
- 3,379 hours
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.