# SDR ASAA2023092745559

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 27, 2023
- Submitted: October 12, 2023
- Operation: Air carrier
- Aircraft: [N464AS](https://openairdocs.org/aircraft/N464AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40714
- Aircraft time: 35,649 hours, 11,031 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 147A8501
- Condition: Corroded
- Location: Unknown
- 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/ASAA2023092745559

## Discrepancy

MAIN CABIN AT L2 DOOR, DOOR SILL SUPPORT ANGLE IS CORRODED AT FASTENER HOLES AND AT EDGE MARKED. GROUNDED - YES. REMOVED CORROSION AS REQUIRED,ORIG THICKNESS 0.080" PER B737-900ER SRM 53-70-15-01-1.REMOVED 0.004" WITH 0.076" REMAINING FOUND WITHIN LIMITS IAW B737-900ER SRM 53-70-15-1A-1.RESTORED FINISH AS REQD IAW B737-900ER SRM 53-70-15-1A-1.

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