# SDR ASAA2024101053391

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 10, 2024
- Submitted: October 28, 2024
- Operation: Air carrier
- Aircraft: [N622AS](https://openairdocs.org/aircraft/N622AS), registered now
- Make and model: Boeing 737790
- Aircraft serial: 30165
- Aircraft time: 70,559 hours, 36,836 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 144A59107
- 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/ASAA2024101053391

## Discrepancy

CABIN FLOOR BOARD SUPORT ANGLE LBL 64 STA 597 TO STA 639 IS CORRODED ON UPPER SURFACE. GROUNDED - YES. REPAIRED CREASE BEAM INNER CHORD AT STA 639 IAW BOEING 737-700 SRM 53-40-13-2R-1 CAT B REPAIR INSPECTION THRESHOLD 36,000 FLIGHT CYCLES OR 12 YEARS WHICHEVER COMES FIRST. REPEAT INPSECTIONS 36,000 FLIGHT CYCLES OR 10 YEARS WHICHEVER COMES FIRST: METHOD DVI. ALL OTHER SPOTS OF CORROSION FOUND IN LIMITS IAW BOEING 737-700 SRM 53-40-13-1A-1. INSPECTION REQUIREMENTS IAW BOEING 737-700 SRM 53-40-13-2R-1 TABLE 204W: 1 O: .050 R: .038 L: 1 D: .012.

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