# SDR SWAA2024082722050

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 2, 2024
- Submitted: August 27, 2024
- Operation: Air carrier
- Aircraft: [N950WN](https://openairdocs.org/aircraft/N950WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36664
- Aircraft time: 45,442 hours, 27,738 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- 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/SWAA2024082722050

## Discrepancy

AFT CARGO LEFT 'Z' CHANNEL HAS CORROSION AROUND FASTENER HOLES ON STA 747 TO 767<[01] REMOVED CORROSION ON AFT CARGO LEFT Z CHANNEL; FOUND OUT OF LIMITS AND REMOVED; FABRICATED MATERIAL USED: BAC1496-377 7075T6 AND INSTALLED NEW LEFT Z CHANNEL. PER SRM 51-10-02-0G-0; PER SRM 53-00-53-1A-2; PER SRM 51-40-02-0G-0; PER SRM 51-40-05-0G-0; PER AMM 51-21-41-370-803; PER AMM 51-21-72-370-804; PER AMM 51-21-73-370-804; PER SRM 51-40-10-2R-0; PER AMM 51-21-91-620-802 AND DWG# 146A7502 SHEET 27.;[02] REMOVED CORROSION ON AFT CARGO LEFT Z CHANNEL; FOUND OUT OF LIMITS AND REMOVED; FABRICATED MATERIAL USED: BAC1496-377 7075T6 AND INSTALLED REPAIRED LEFT Z CHANNEL. PER SRM 51-10-02-0G-0; PER SRM 53-00-53-1A-2; PER SRM 51-40-02-0G-0; PER SRM 51-40-05-0G-0; PER AMM 51-21-41-370-803; PER AMM 51-21-72-370-804; PER AMM 51-21-73-370-804; PER SRM 51-40-10-2R-0; PER AMM 51-21-91-620-802 AND DWG# 146A7502 SHEET 27.;[03] VERIFIED STEP 2.

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