# SDR SWAA2023081677571

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 12, 2023
- Submitted: August 16, 2023
- Operation: Air carrier
- Aircraft: [N8600F](https://openairdocs.org/aircraft/N8600F), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 39882
- Aircraft time: 38,436 hours, 17,543 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Part number: UNKNOWN
- Condition: Cracked
- 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/SWAA2023081677571

## Discrepancy

AFT CARGO COMPARTMENT RIGHT SIDE; FLOOR STRUCTURE 'Z CHANEL' HAS CRACK BETWEEN STA 727H TO STA 727I.<[01] EVALUATED DAMAGED CRACK AREA OUT OF LIMITS PER SRM 53-00-53-1A-2<BR>REMOVED DAMAGED Z-CHANNEL SECTION FROM STA 727F+10' TO 767 PER SRM 51-40-02-0G-0<BR>LOCATED AND DRILLED NEW Z CHANNEL SECTION FROM STA 727F +10' TO STA 767 PER SRM 51-40-05-0G-0<BR>TREATED AND PRIMED NEW Z CHANNEL SECTION PER AMM 51-21-41-370-803 AND AMM 51-21-72-370-804<BR>INSTALLED Z-CHANNEL SECTION STA 727F +10' TO STA 767 PER SRM 51-40-02-0G-0 AND DWG#146A7502;[02] VERIFIED STEP 1;[03] VERIFIED STEP 1

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