# SDR SWAA2023040312503

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2023
- Submitted: April 3, 2023
- Operation: Air carrier
- Aircraft: [N556WN](https://openairdocs.org/aircraft/N556WN), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 33936
- Aircraft time: 37,398 hours, 21,958 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Condition: Corroded
- Location: Zn 100 Fus Lower
- 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/SWAA2023040312503

## Discrepancy

AFT CARGO BAY - CORROSION ON THRESHOLD WEB AT RBL 27 BS 807+2.5; BS 807+3.5; BS 807+5.25; BS 807+6.5; BS 807+8.75; BS 807+11; BS 807+14 BS 807+16; BS 807+16.5; BS 807+17.5; BS 807+19.<[01] COMPLETED STEPS 1-11 <BR>VERIFIED APPLICABILTY PER SRM#53-60-15-01-1 FOR IDENTIFICATION AND SRM#53-60-15-1A-1 FOR ALLOWABLE DAMAGE;[02] VERIFIED CORRECTIVE ACTION STEP 1.;[03] FABRICATION WILL BE COMPLETED ON CUSTOMER CARD NBR:TTG8Q00J972N;[04] UPDATED MESURMENT TABLE;[05] UPDATED MEASUREMENTS;[06] VERIFIED CORRECTIVE ACTION #3.<BR>VERIFIED MEASUREMENTS.

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