# SDR SWAA2022060904976

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 2022
- Submitted: June 9, 2022
- Operation: Air carrier
- Aircraft: [N477WN](https://openairdocs.org/aircraft/N477WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33988
- Aircraft time: 60,414 hours, 35,826 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Cracked
- 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/SWAA2022060904976

## Discrepancy

WHILE REMOVING THE STA 986 FLOORBEAM UPPER CHORD FOUND THE FRAME CRACKED AT STA 986 LBL 48 WL 207 CRACKED 986 FRAME / [01] REMOVED APU DUCT FROM STA 876-1020 AND AFT DRAIN HOSE AT STA 986 IAW SOPM 20-50-01;[02] REMOVED LOWER FRAME SECTION AT BS 986 STR 17L-22L IWA SRM 51-40-02-OG-O;[03] RECEIVED FABRICATED FRAME PART FROM OSS ALL WORK ACCOMPLISHED CUSTOMER RO#867079 AND LOCATED AND DRILLED PER DWG 147A1086 AND SRM 51-40-05;[

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