# SDR ASAA2024112454467

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 24, 2024
- Submitted: December 13, 2024
- Operation: Air carrier
- Aircraft: [N433AS](https://openairdocs.org/aircraft/N433AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41704
- Aircraft time: 41,254 hours, 12,967 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Transition Panel
- Part number: 146A7502
- 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/ASAA2024112454467

## Discrepancy

AFT CARGO, R/H TRANSITION PANEL HAS CORROSION FROM STA 727C TO 727I. GROUNDED - YES. REMOVED CORROSION FROM AFT PIT R/H TRANSITION PANEL FROM STA 727C TO 727I IAW B737-900ER SRM 53-00-53-1A-2. ORIG THICKNESS IS .040" IAW B737-900ER SRM 53-60-53-01-1. REMOVED .010". REMAINING THICKNESS IS .030" AND IS FOUND TO BE OUT LIMITS IAW B737-900ER SRM 53-00-53-1A-2. REMOVED AND REPLACED AFT CARGO, R/H TRANSITION PANEL USING PN: BAC1496-377 7075-T62 PO:1100059.1 FROM STA 727B+10 TO 727I+8 IAW B737-900ER SRM 53-00-53-2R-5.

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