# SDR ASAA2023022142339

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2023
- Submitted: March 15, 2023
- Operation: Air carrier
- Aircraft: [N581AS](https://openairdocs.org/aircraft/N581AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35188
- Aircraft time: 55,489 hours, 16,498 cycles
- System (JASC): [5710 · Wing Main, Frame Structure](https://openairdocs.org/jasc/5710)
- Part: Crease Beam
- Part number: 144A591022
- Condition: Corroded
- 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/ASAA2023022142339

## Discrepancy

WING CENTER SECTION R/H SIDE AT STA. 639 STR.17R HAS CORROSIONON SILL ANGLE. GROUNDED - YES. REMOVED CORROSION ORIG .071, REMAIN .058 LOSS OF .013 WITH CORROSION STILL EVIDENT. FOUND OUT OF LIMITS IAW B737-800 SRM 53-40-13. REMOVED SILL ANGLE IAW B737-800 SRM 51-40-02. ALL OTHER WORK ACCOMPLISHED ON ASA CARD #G1774110.

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