# SDR ASAA2025011755703

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 17, 2025
- Submitted: February 4, 2025
- Operation: Air carrier
- Aircraft: [N459AS](https://openairdocs.org/aircraft/N459AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36352
- Aircraft time: 38,181 hours, 11,907 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Transition Panel
- Part number: 146A750236
- Condition: Corroded
- Location: Zone 100
- 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/ASAA2025011755703

## Discrepancy

AFT CARGO BAY LH TRANSITION HAS AREAS OF CORROSION FROM FS 727C TO FS 847. GROUNDED - YES. REMOVED AND REPLACED L/H TRANSITION FROM STA 727C TO STA 847 IAW B737-900ER SRM 53-00-53-2R-5 W: 2 O: .040 R: .023 L: 3 D: .017.

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