# SDR LR7A2015031800539

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 18, 2015
- Submitted: March 20, 2015
- Operation: Air carrier
- Aircraft: [N405LC](https://openairdocs.org/aircraft/N405LC), registered now
- Make and model: Lkheed 382G
- Aircraft serial: 5025
- Aircraft time: 39,899 hours, 16,848 cycles
- System (JASC): [5340 · Fuselage Main, Attach Fittings](https://openairdocs.org/jasc/5340)
- Part: Tee Fitting
- Part number: LS4112
- Condition: Corroded
- Location: Bs 477
- 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/LR7A2015031800539

## Discrepancy

DURING SCHEDULED C-11 CHECK UNDER JOB CARD HC 2111, FOUND THE APU COMPARTMENT INTERIOR RIB CLIP HAD EXFOLIATION CORROSION AT FS 477 AND FS 491, WL 200, LBL 85.  REPAIR BY REPLACEMENT ACCOMPLISHED IAW SMP 583, CHAPTER 51-60 AND 51-70, NR 2242.

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