# SDR DALA1135309866

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 2011
- Submitted: May 19, 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: Skin
- Condition: Damaged
- Location: Floor Panel
- 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/DALA1135309866

## Discrepancy

MAIN CABIN FLOOR PANEL 73 HAS 1 HOLE ON TOP SKIN.  CUT OUT DAMAGE (1") IAW SRM 53-01 FIG, 4. NDT VERIFIED NO CRACK NOTED IAW NDT SPM 06-10-01. ORIG MAT OF PANEL 73 IS .020" 7075-T6 IAW SRM 53-23-0.  FABRICATED DOUBLER FROM .032" 7075T6 AND INSTALLED IAW SRM 53-01 FIG 4.

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