# SDR DALA1025709865

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2010
- Submitted: October 7, 2010
- Operation: Air carrier
- Aircraft: N774NC
- 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: 47776
- Aircraft time: 74,253 hours, 70,956 cycles
- Engine: Pwa JT8D1
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Cracked
- Location: Bs 712
- 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/DALA1025709865

## Discrepancy

DURING M-CHECK FOUND CRACK IN MAIN CABIN FLOOR SUPPORT FASTENER HOLE AT BS 712 RBL 22- RBL 44.  REPAIRED IAW SRM 51-30-2, SRM 53-13-3 FIG 1, SRM 51-10-3.

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