# SDR DALA2021122007907

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 2021
- Submitted: December 20, 2021
- Operation: Air carrier
- Aircraft: [N820DX](https://openairdocs.org/aircraft/N820DX), registered now
- Make and model: Boeing 757-26D
- Registry model: [Boeing 757-26D](https://openairdocs.org/model/boeing-757-26d) (OpenAirDocs)
- Aircraft serial: 33960
- Aircraft time: 47,389 hours, 23,712 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: None
- Condition: None
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2021122007907

## Discrepancy

SHIP 6820 AD. A.A./ A.D.DAMAGES WERE FOUND ON OPEN HOLES AT RH ENG DRAG FTG CLAMP-UP & DIAG BRACE AS FOLLOW; HOLE #14 CORROSION ON SKIN BTW 4 TO 8 OCLOCK POSITION, HOLE #15 CORROSION ON SKIN BTW 4 TO 7 OCLOCK POSITION, HOLE #16 CORROSION ON SKIN BTW 2 TO 3 AND 7 TO 8 OCLOCK POSITION, HOLE #18 CORROSION ON SKIN AT 12 OCLOCK POSITION. IN REF. CARD 5720-01100-05B. JOB # 121-0001 STEP 14 C. CORRECTIVE ACTION: SUMMARY OF N.R.C. 00489. HOLES WERE REPAIRED. PER. ETI-57-21-580 REVISION 3 AND ER/A 582804-14AD. REV. D. (2056780)

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