# SDR SWAA2023012681851

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2022
- Submitted: January 26, 2023
- Operation: Air carrier
- Aircraft: [N7713A](https://openairdocs.org/aircraft/N7713A), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 33919
- Aircraft time: 57,380 hours, 30,141 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Condition: Corroded
- Location: Zone 100
- 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/SWAA2023012681851

## Discrepancy

CORROSION ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT LBL 21 BS 727A+6; BS 727A+8; BS 727A+12; BS 727A+19; BS 727B+2; BS 727B+15.<[01] VERIFIED APPLICABILITY SRM 53-60-53-01-2 FOR IDENTIFICATION AND SRM 53-00-53-1A-2 FOR ALLOWABLE DAMAGE<BR><BR>REMOVED CORROSION AT BS 727B+15.IAW SRM 51-10-02.<BR><BR>EVALUATED DAMAGE REMOVAL AT BLENDED AREA L=0.700' W=1.000' ORIGINAL THICKNESS 0.040' PER BAC1496-377 REMAINING 0.030' LOSS 0.010'; MAX MAT REMOVE ALLOWABLE 0.004'; FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2 PARA 4A (2) FIG 103 DETAIL D.<BR><BR>TOOL ID: ATS1671 S/N: 65093024 DUE:07/2023;[02] VERIFIED CORRECTIVE ACTION 1 AND STEPS 1-6 OUT OF LIMITS.;[03] THIS CARD WILL BE ACCOMPLISHED WITH THE CARD TTG8Q00GNCEJ.;[04] VERIFIED CORRECTIVE ACTION #3;[05] MEASUREMENT TABLE VERIFIED

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