# SDR AALA202107131488

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 27, 2021
- Submitted: July 13, 2021
- Operation: Air carrier
- Aircraft: [N842NN](https://openairdocs.org/aircraft/N842NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31099
- Aircraft time: 33,780 hours, 13,752 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Crease Beam
- Part number: 147A85408
- Condition: Corroded
- Location: Bs 947-997 S17r
- 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/AALA202107131488

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CORROSION ON RIGHT CREASE ANGLE ON INNER CHORD BETWEEN 947 TO 997 AND STR 17R. INSTALLED INNER CHORD IAW 51-40-02.

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