# SDR DALA1216096304

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 15, 2012
- Submitted: May 14, 2012
- Operation: Air carrier
- Aircraft: N664US
- Make and model: Boeing 747451
- Aircraft serial: 23819
- Aircraft time: 94,936 hours, 11,936 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Corroded
- 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/DALA1216096304

## Discrepancy

MAIN DECK CABIN FLOOR SUPPORT STRUCTURE UPPER & LWR SURFACE AT BS 575-50 & LBL 98 FOUND CORROSION.  REPAIRED PER PRI 501574-14.

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