# SDR CALA2021020500126

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 3, 2021
- Submitted: February 5, 2021
- Operation: Air carrier
- Aircraft: [N401UA](https://openairdocs.org/aircraft/N401UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 435
- Aircraft time: 83,168 hours, 32,129 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Part number: D5725010220300
- Condition: Cracked
- Location: Wing
- 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/CALA2021020500126

## Discrepancy

FIGURE 7 VIEW ON BOTTOM SKIN REFERENCE DRAWING #R574-40033 SHEET #12 HOLE #24, 27, 8, 32, AND 36 HAVE CRACK LIKE INDICATIONS.   REAMED HOLES 24, 27, 18, 32 AND 36 TO FINAL SIZE OF .6405 AND AF T FLUSH FASTENER (TRAPPED BY SPIGOT FITTING) TO FINAL HOLE SIZE OF .5620 IAW REO L22838 STEP (3) STAGE 7. NDT INSPECTION COMPLET E WITH NO RELEVANT INDICATIONS IAW NTM 51-10-01IN DESCREPANCY DESCRIPTION HOLE # 8 SHOULD BE HOLE #18. REPAIR ACCOMPLISHED AT HAECO-LCQ PER REO L22838 AND ECRA 5725-01 071. EC/RA 5725-01071 ORIGINATING DOCUMENT IS UAL N/R 9290117

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