# SDR DALA2018031601730

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 2018
- Submitted: March 16, 2018
- Operation: Air carrier
- Aircraft: [N698DL](https://openairdocs.org/aircraft/N698DL), registered now
- Make and model: Boeing 757232
- Aircraft serial: 29911
- Aircraft time: 62,724 hours, 23,548 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Nut
- Condition: Corroded
- Location: Flap Ballscrew
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2018031601730

## Discrepancy

LEFT WING INBD FLAP, INBD BALLSCREW NUT HAS CORROSION ON INNER SIDE WHERE BUSHINGS ATTACH TO.  REMOVED AND REPLACED THE BALLSCREW ASSY IAW CMM 27-52-15.  OPS TESTED IAW AMDS CARD 2751-2538.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.