# SDR ASAA2025092661317

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 26, 2025
- Submitted: October 7, 2025
- Operation: Air carrier
- Aircraft: [N434AS](https://openairdocs.org/aircraft/N434AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 61620
- Aircraft time: 35,108 hours, 10,848 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Rail
- Part number: 143A948534
- 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/ASAA2025092661317

## Discrepancy

FWD CARGO AFT BULKHEAD R/H SUPPORT CORRODED RBL 30 TO 35 STA 500L. GROUNDED - YES. REMOVED DAMAGE FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-30-08-1A-1. REMVOED AND REPLACED SUPPORT RAIL ON FWD CARGO AFT BULKHEAD RH BTW RBL 30 TO 35 STA 500L IAW B737-900ER SRM 51-40-02W =2.00" OT= 0.071" RT: 0.049" L= 3.00" D= 0.022".

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