# SDR DL72S021449

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2002
- Submitted: January 15, 2003
- Operation: Air carrier
- Aircraft: [N521DA](https://openairdocs.org/aircraft/N521DA), registered now
- Make and model: Boeing 727232
- Aircraft serial: 21472
- Aircraft time: 67,418 hours, 52,361 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Part number: 655457416
- Condition: Cracked
- Location: S-4r, Fs 681-740
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL72S021449

## Discrepancy

FUSELAGE / SKIN / FS 681-740 / STRG. 4R / SKIN LAP JOINT :  CRACK REPAIR                                                LFEC INSPECTION OF THE STRINGER 4R SKIN LAP JOINT BETWEEN   FS 681 & 740 GAVE CRACK INDICATIONS.  INTERNAL MFEC         INSPECTIONS CONFIRMED 8 CRACK LOCATIONS ALONG THE LOWER ROW OF FASTENERS IN THE LOWER SKIN PANEL.  THE ENTIRE LAP JOINT WAS CUTOUT AN REPAIRED WITH AN EXTERNAL ALUMINUM DOUBLER    PER ER/A 384201-14AD, REV A.

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