# SDR ASAA2024021248096

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2024
- Submitted: February 28, 2024
- Operation: Air carrier
- Aircraft: [N403AS](https://openairdocs.org/aircraft/N403AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41730
- Aircraft time: 42,009 hours, 13,349 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Transition Panel
- Part number: 146A750235
- Condition: Corroded
- Location: Bs 727-727f
- 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/ASAA2024021248096

## Discrepancy

AFT CARGO L/H TRANSITION PANEL STA 727-727F HAS 29 PLACES WITH CORROSION. (MARKED IN RED). GROUNDED - YES. REMOVED CORROSION FROM AFT CARGO L/H TRANSITION PANEL STA 727 TO 727F IAW B737-900ER SRM 53-00-53-1A-2. ORIG. THICKNESS IS .040" IAW B737-900ER SRM 53-60-53-01-2. REMOVED .012" REMAINING THICKNESS IS .028" AND IS FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2. REPAIRED L/H TRANSITION PANEL FROM STA 727 TO 727F+10 IAW B737-900ER SRM 53-00-53-2R-5.

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