# SDR UIEA2015120900714

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2015
- Submitted: December 9, 2015
- Operation: Air carrier
- Aircraft: [N780BA](https://openairdocs.org/aircraft/N780BA), registered now
- Make and model: Boeing 747409
- Aircraft serial: 24310
- Aircraft time: 76,891 hours, 14,922 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Corroded
- Location: Fuselage
- 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/UIEA2015120900714

## Discrepancy

CORROSION SKIN, RIGHT FUSELAGE UPPER EXTERNAL SURFACE AT STATION 560 - 580 & STRINGER 132R - 133R.  REMOVE DAMAGE & MEASURE REWORK AREA EXISTING.  REWORKED REMAINING THICKNESS, LENGTH=2.5" & WIDTH=0.5" & DEPTH=0.004" & EXISTING THICKNESS = 0.125", IT IS WITHIN ALLOWABLE LIMITS IAW SRM 53-00-01-1A-1 ALLOWABLE DAMAGE REV 32 & SRM 53-20-01-01-1 IDENTIFICATION REV 32 & PERFORM AREA PROTECTIVE TREATMENT IAW SRM 51-20-01 REV 31.  CONDITION CHECK NORMAL & JOB COMPLETED.

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