# SDR SWAA2021081397251

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2020
- Submitted: August 13, 2021
- Operation: Air carrier
- Aircraft: [N8639B](https://openairdocs.org/aircraft/N8639B), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 60086
- Aircraft time: 21,005 hours, 9,242 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- Condition: Corroded
- Location: Bs 867-887 S24r
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021081397251

## Discrepancy

AFT CARGO COMPARTMENT FLOOR TO SIDEWALL TRANSITION SUPPORT CORRODED IN 3 PLACES; STA. 867-887; ABOVE STR. 24R; WL.168; RBL-21. / REMOVED CORROSION AT RH Z-ANGLE STA 867 TO 887 AS MARKED IAW SRM 51-10-02-0G-0 AND SRM 53-00-53-1A-2. VERIFIED WITH 10X MAGNIFICATION ORIGINAL THICKNESS .040'; AFTER REWORK .034' .006' MATERIAL LOSS. OUT OF LIMITS IAW SRM 53-00-53-1A-2 FIG 103. TOOL: 36646 DUE; 05 OCT 20. REMOVED OUT OF LIMITS RH Z-ANGLE STA 867 TO 887 AND INSTALLED NEW Z-ANGLE ALL IAW SRM 51-40-02-00-0 AND DWG 146A4502 REV -. APPLIED CIC IAW AMM 51-21-91-620-802. ATG: A04874 P/N 146A7502-56

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