# SDR UALA2012021000800

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 9, 2012
- Submitted: March 2, 2012
- Operation: Air carrier
- Aircraft: N528UA
- Make and model: Boeing 757-21B
- Registry model: [Boeing 757-21B](https://openairdocs.org/model/boeing-757-21b) (OpenAirDocs)
- Aircraft serial: 25018
- Aircraft time: 68,901 hours, 25,585 cycles
- Engine: Pwa PW2037
- System (JASC): [5754 · Leading Edge Devices](https://openairdocs.org/jasc/5754)
- Part: Slat
- Part number: 114N3002125A
- Part serial: 42
- Condition: Dented
- Location: Nr 5
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012021000800

## Discrepancy

NR 5 LEADING EDGE SLAT IS DENTED FWD OF THE NOSE BEAM LOCATION.  DENT MEASURES 4" X 4" WITH A DEPTH OF .1875".  DENT IS OUT OF LIMITS PER 757 SRM WITH MINOR AXIS BEING 4" & DEPTH AT .1875 A-Y = 22.6.  REMOVED NR 5 L/E SLAT PER MM.  INSTALLED NR 5 SLAT. WILL NEED TO CONTINUE FROM "B " TO END.  FLAPS HAVE BEEN LOWERED TO THE TWENTY UNIT POSITION.  SLATS HAVE BEEN MANUALLY EXTENDED PAST PARTIAL EXTEND MANUALLY.  MANUALLY RETRACT TO REFERENCED TORQUE TUBE POSITION BEFORE FLAP RETRACTION.

---
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.