# SDR DALA1130279866

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2011
- Submitted: May 2, 2011
- Operation: Air carrier
- Aircraft: N775NC
- Make and model: Doug DC-9-51
- Registry model: [Doug DC-9-51](https://openairdocs.org/model/mcdonnell-douglas-dc-9-51) (OpenAirDocs)
- Aircraft serial: 47785
- Aircraft time: 73,589 hours, 69,813 cycles
- System (JASC): [5321 · Fuselage Floor Panel](https://openairdocs.org/jasc/5321)
- Part: Floor Panel
- Condition: Corroded
- Location: Cabin
- 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/DALA1130279866

## Discrepancy

MAIN CABIN-FLOOR PANEL 35 UPPER SURFACE HAS CORROSION ON EXISTING REPAIR DOUBLER.  REMOVED CORROSION IAW SRM 51-10-3.  FOUND OUT OF LIMITS. FABED NEW DOUBLER FR0M 0.025 7075T6 IAW SRM 53-01, FIG 2, SHEET 3 AND 53-23-0, FIG 4.  TREATED AND PRIMED IAW SRM 51-10-3 AND INSTALLED IAW SRM 53-01, FIG 2, SHEET 3 INSTALLED ID TAG IAW DPS 900-5-1, NR 4 P-226C REQUIRED INSP COMPLETED BY Q-919 483541 29APR 11.

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