# SDR ASAA2026020764720

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 2026
- Submitted: March 7, 2026
- Operation: Air carrier
- Aircraft: [N494AS](https://openairdocs.org/aircraft/N494AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41729
- Aircraft time: 8 hours, 7 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A550423
- Condition: Corroded
- Location: Zone 200
- 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/ASAA2026020764720

## Discrepancy

RIGHT FRAME 947 HAS CORROSION UPPER SURFACE NEAR LAV MOUNT BRACKET. GROUNDED - YES. REPAIRED FLOORBEAM STA 947 IAW BOEING SRM 53-70-51-2R-5 REPAIR 5 & EA 900ER-53EA-29930 REV 00W= .850" O= .180 R= .108 L= .950" D= .072".

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