# SDR DALA2023042103146

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2023
- Submitted: April 22, 2023
- Operation: Air carrier
- Aircraft: [N939DZ](https://openairdocs.org/aircraft/N939DZ), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 38720
- Aircraft time: 27,661 hours, 14,366 cycles
- System (JASC): [5321 · Fuselage Floor Panel](https://openairdocs.org/jasc/5321)
- Part: Unknown
- Condition: Unknown
- Location: Unknown
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2023042103146

## Discrepancy

AIRCRAFT 3939, PASSENGER COMPARTMENT, FLOOR BEAM AT WL 208, BS 947, RBL 10 HAS CORROSION. CORRECTIVE ACTION: REPAIRED PASSENGER COMPARTMENT, FLOOR BEAM AT BS 947 RBL 10, WL 208 PER B737 S.R.M 53-00-51-2R-1. CORROSION FOUND ON UPPER CHORD, FLOOR BEAM @ STA 947.5, RBL 10, WL 208 IN AREA OF 1.0" L X 1.0" W X .052"D. FOUND OUT OF LIMITS PER SRM 53-70-51-1A-1, FIG 103, DET. C. (LP 2727215)

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