# SDR ASAA2021121336897

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2021
- Submitted: December 16, 2021
- Operation: Air carrier
- Aircraft: [N551AS](https://openairdocs.org/aircraft/N551AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 34593
- Aircraft time: 53,393 hours, 18,403 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Transition Panel
- Part number: 146A7502
- Part serial: NSN
- Condition: Corroded
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021121336897

## Discrepancy

AFT CARGO L/H TRANSITION HAS MULTIPLE SPOTS OF CORROSION FROM STA 727-807. GROUNDED - YES. REMOVED AND REPLACED L/H AFT CARGO TRANSITION FROM STA 727+4 TO STA 847 IAW B737-800 SRM 53-00-53-2R-5.W= 21" O= .045" BY COMPARISON R= .020" L= 28" D= .025".

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