# SDR CALA2021020500127

- 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/CALA2021020500127

## Discrepancy

FIGURE 6 VIEW ON TOP SKIN REFERENCE DRAWING # R574-40033 SHEET # 11 HOLE #3, 7 AND 9 HAVE CRACK LIKE INDICATIONS - A3NB-05-3-6106. REAMED HOLES 3, 7 & 9 TO FINAL HOLE SIZE .6405 IAW REO L22838 S TAGE 7 STEP 3 NDT INSPECTION COMPLETE WITH NO RELEVANT INDICATIO NS IAW NTM 51-10-01.  ACCOMPLISHED PERMANENT REPAIR AT HAECO-LCQ PER REO-L22838 AND EC RA 5725-01071. ORIGINATING DOCUMENT IS UAL N/R 9290117.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.