# SDR SWAA2021120142255

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 9, 2021
- Submitted: December 1, 2021
- Operation: Air carrier
- Aircraft: [N7862A](https://openairdocs.org/aircraft/N7862A), registered now
- Make and model: Boeing 737-71B
- Registry model: [Boeing 737-71B](https://openairdocs.org/model/boeing-737-71b) (OpenAirDocs)
- Aircraft serial: 33009
- Aircraft time: 48,858 hours, 32,792 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2021120142255

## Discrepancy

CORROSION FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT BS 400 +18 RBL 25 WL 156 ; / [01] EVALUATED CORROSION; FOUND 0.015 REMOVED FROM ORIG 0.040 IN 1'X1' AREA FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING DIAL DEPTH GAUGE ATS 1225 S/N UNKNOWN; [02] VERIFIED OUT OF LIMITS; [03] FABRICATED NEW FCB RH FLOOR TO SIDEWALL SUPPORT; BS 395-420; LOCATED AND DRILLED IAW SRM 51-40-05-0G-0; DWG; 143A7500; MATERIAL; BAC1496-444#7075T62; LOT#1467644-1; APPLIED CHEMICAL CONVERTION COATING; IAW SRM; 51-20-01-0G-0; AND OK TO PRIME.; [04] VERIFIED FABRICATED NEW FCB RH FLOOR TO SIDEWALL SUPPORT; BS 395-420; LOCATED AND DRILLED IAW SRM 51-40-05-0G-0; DWG; 143A7500; MATERIAL; BAC1496-444#7075T62; LOT#1467644-1; APPLIED CHEMICA

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