# SDR ASAA2023051943352

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2023
- Submitted: May 26, 2023
- Operation: Air carrier
- Aircraft: [N277AK](https://openairdocs.org/aircraft/N277AK), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 62472
- Aircraft time: 20,390 hours, 6,627 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Transition Panel
- Part number: 143A7501233
- Condition: Corroded
- 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/ASAA2023051943352

## Discrepancy

FWD PIT L/H TRANSITION HAS AREAS OF CORROSION STA 500A+9 TO 500L (DOT SM39-007). GROUNDED - YES. RMEOVED DAMAGE IAW B737-900ER SRM 53-00-53-2R-5 500A THRU 500G FOUND IN LIMITS 500G THRU 500L 100% MAT LOSS REMOVED AND REPLACED AREA IAW B737-900ER SRM 53+-00-53-2R-5W: 1.0 O: .040 R: .038 L: 1.000 D: .002.

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