# SDR DALA1036479855

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2010
- Submitted: December 23, 2010
- Operation: Air carrier
- Aircraft: N764NC
- 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: 47717
- Aircraft time: 77,185 hours, 77,042 cycles
- Engine: Pwa JT8D9
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Cracked
- Location: Main Cabin
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA1036479855

## Discrepancy

DURING M-CHECK, FOUND MAIN PASSENGER CABIN FLOORBOARD NR89 HAT CHANNEL IS CRACKED.  REMOVED DAMAGED HAT CHANNEL 2EA HFEC NDT SPM 06-10-01.  REPAIRED HAT CHANNEL IAW SRM DC-9 53-05 FIG 1 PG10.  INSTALLED HAT CHANNEL IAW DC-9 51-30-2 AND 53-05 FIG 1, PG 10.

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