# SDR SCNA20200929053

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2020
- Submitted: September 29, 2020
- Operation: Air carrier
- Aircraft: [N820SY](https://openairdocs.org/aircraft/N820SY), registered now
- Make and model: Boeing 737-8FH
- Registry model: [Boeing 737-8FH](https://openairdocs.org/model/boeing-737-8fh) (OpenAirDocs)
- Aircraft serial: 39951
- Aircraft time: 19,601 hours, 6,403 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Rail
- Condition: Corroded
- Location: Fwd Cargo Blkhd
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SCNA20200929053

## Discrepancy

FWD CARGO AFT BULKHEAD LOWER RAIL HAS CORROSION IN SEVERAL AREAS 500 RBL 21 TO LBL 21.  REMOVED CORROSION ON FWD CARGO BULKHEAD LOWER RAIL, 100% MATERIAL LOSS.  FOUND TO BE OUT OF LIMITS.  REMOVED AND REPLACED FWD CARGO AFT BULKHEAD LOWER RAIL, IAW B737-800 SRM 51-10-02 AND B737-800 SRM 51-40-02.

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