# SDR CALA2021012800098

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 27, 2021
- Submitted: January 29, 2021
- Operation: Air carrier
- Aircraft: [N15712](https://openairdocs.org/aircraft/N15712), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28783
- Aircraft time: 69,515 hours, 23,884 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Part number: 112A40017
- Condition: Corroded
- Location: Lh Wing Bbl 70
- 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/CALA2021012800098

## Discrepancy

CORROSION FOUND UNDER LT WING AT BBL 70.85, OUTBOARD OF T-CHORD FASTNER 11-4 ON LOWER SURFACE. SPT LP 5866412 ACCOMPLISHED ALL REWORK, IAW ECRA 5725-01069, NO FURTHER ACTION REQUIRED.  DATA WAS TRANSCRIBED FROM N/R 5866412 WORK ACCOMPLISHED INSPECTION ACCOMPLISHED.

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