# SDR DALA1140319861

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 17, 2011
- Submitted: June 20, 2011
- Operation: Air carrier
- Aircraft: N770NC
- 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: 47758
- Aircraft time: 75,864 hours, 73,207 cycles
- System (JASC): [5321 · Fuselage Floor Panel](https://openairdocs.org/jasc/5321)
- Part: Floor Panel
- Condition: Corroded
- Location: Cockpit
- 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/DALA1140319861

## Discrepancy

COCKPIT 13 FLOOR PANEL WITH CORROSION.  UPON FURTHER EVALUATION FOUND PANEL TO BE EXFOLIATED AND CRACKED REMOVED 9 EA HAT CHANNEL FROM FLOOR PANEL 13, (1 EA) HAT CHANNEL FOUND TO BE CRACKED PER DC9 51-30-2.  FABBED PANEL AND 1 EA HAT CHANNEL PER DC9 SRM 53-23-0 TREATED AND PRIMED PER DC9 SRM 51-10-3 PARA 31 PARA 14 AND PARA 21 PAGE 40.  INSTALLED 9EA HAT CHANNELS ON FLOOR PANEL 13 AND ANGLE PER DC9 SRM 51-30-2 PG 2 FIG 1.

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