# SDR DALA1140859861

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 22, 2011
- Submitted: June 23, 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): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Cracked
- Location: Fuselage
- 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/DALA1140859861

## Discrepancy

MAIN CABIN AT STA 1136 .091 FLOOR SUPPORTS ON LEFT AND RIGHT SIDES APPROXIMATELY 12" FROM BL 0 ARE CRACKED AT FWD O/B SIDES.  REMOVED AND REINSTALLED CABIN FLOOR SUPPORTS ON LEFT AND RIGHT SIDE STA 1136.091 IAW DC9 SRM 51-30-1 PG 1.  REPAIRED CRACKS IAW DC9 SRM 53-01 PG 13 FIG 1 SHEET 4.  STOP DRILLED CRACKS.  HFEC PER NDTSPM 06-10-01.0001 NO DEFECT NOTED.  FABBED AND INSTALLED DOUBLERS IAW DC9 SRM 53-01 PG 13 FIG 2 SHEET 4.

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