# SDR DALA1123429871

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2011
- Submitted: April 1, 2011
- Operation: Air carrier
- Aircraft: [N780NC](https://openairdocs.org/aircraft/N780NC), registered now
- 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: 48102
- Aircraft time: 72,571 hours, 67,115 cycles
- System (JASC): [5321 · Fuselage Floor Panel](https://openairdocs.org/jasc/5321)
- Part: Floor Panel
- Condition: Cracked
- Location: Cabin
- 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/DALA1123429871

## Discrepancy

MAIN CABIN FLOOR PNL HAS CRACK AROUND FASTENER HOLE ON FLOOR PNL 58.  CUT OUT DAMAGE (2.5 X 4.75) IAW DC9 SRM 53-05 FIG 1.  FABRICATED, LOCATED, DRILLED AND INSTALLED FILLER USING .020 7075-T6 AND DOUBLER USING .032 7075-T6 IAW DC9 SRM 5305 FIG 1.  IDENTIFICATION TAG ADDED IAW DPS 900-5-1 NR 4.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.