# SDR SWAA2020030442023

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2020
- Submitted: March 4, 2020
- Operation: Air carrier
- Aircraft: [N7879A](https://openairdocs.org/aircraft/N7879A), registered now
- Make and model: Boeing 737-7K9
- Registry model: [Boeing 737-7K9](https://openairdocs.org/model/boeing-737-7k9) (OpenAirDocs)
- Aircraft serial: 34321
- Aircraft time: 44,713 hours, 21,719 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Part number: 146A8120
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2020030442023

## Discrepancy

***CORROSION*** ON AFT CARGO DOOR SUB THRESHOLD WEB STA 794-897, LBL 45, WL 155         CORROSION ON AFT CARGO DOOR SUB THRESHOLD WEB STA 794-897 LBL 45 WL 155 WAS FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2 FIG 103 DETAIL D. REMOVED OLD WEB. LOCATED, DRILLED AND INSTALLED NEW WEB ITEM 7530091 P.O.# 783619 IAW SRM 51-40-02-0G-0, SRM 51-40-05-0G-0, SRM 51-40-08-0G-0 AND DWG'S 146A8120 REV. E AND 146A8340 REV-. 92058U 02/26/20

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