# SDR ASAA2025111062794

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 10, 2025
- Submitted: December 5, 2025
- Operation: Air carrier
- Aircraft: [N609AS](https://openairdocs.org/aircraft/N609AS), registered now
- Make and model: Boeing 737790
- Aircraft serial: 29752
- Aircraft time: 76,820 hours, 40,807 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Support Frame
- Part number: 143A9485
- 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/ASAA2025111062794

## Discrepancy

FWD PIT AFT BULKHEAD LOWER SUPPORT FRAME HAS CORROSION. GROUNDED - YES.  REMOVED AND REPLACED FWD PIT AFT BULKHEAD LOWER SUPPORT FRAME IAW SRM 51-40-02-OG-OW:.700 O:.071 R:.050 L:.750 D:.021.

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