What was found
DURING WEAR INSPECTION OF FLAP BALLSCREW GIMBAL PIN, FOUND THE LT INBD FLAP NR 4 BALLSCREW GIMBAL PIN INNER DIAMETER HAS CORROSION. REMOVED AND REPLACED THE BALLSCREW ASSEMBLY.
- Difficulty date
- April 19, 2018
- Submitted
- April 23, 2018
- Operation
- Air carrier
- Aircraft
- N699DL
- Make and model
- Boeing 757232
- Aircraft serial
- 29970
- Aircraft time
- 63,755 hours, 23,616 cycles
- System (JASC)
- 2750 · Trailing Edge Flap Control System
- Part
- Ball Screw
- Condition
- Corroded
- Location
- Lt Wing Te Flap
- 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.