# SDR CALA2020021600424

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 13, 2020
- Submitted: February 16, 2020
- Operation: Air carrier
- Aircraft: N598UA
- Make and model: Boeing 757222
- Aircraft serial: 28751
- Aircraft time: 77,560 hours, 19,875 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Condition: Cracked
- Location: Lt 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/CALA2020021600424

## Discrepancy

LH DRAG BRACE FITTING SKIN HAS FASTENER HOLE CRACK INDICATION AT FASTENERS 5, 9, 14, 17 & 18. REF. A EE ECRA 5720-03163 L/H WING UPPER SKIN, FWD DRAG FITTINGS, AND SHIM REPLACEMENT INTERIM REPAIR. ON OR BEFORE JAN 23 2022 OR THE ACCUMULATION OF 21,975 TOTAL A/C FLT CYCLES, WHICHEVER COMES FIRST, ACCOMPLISH A PERMANENT REPAIR PER PART 3 OF ECRA 5720- 03163. PLANNING TO CONTACT ENGINEERING AFTER NOV 23, 2021 OR THE ACCUMULATION OF 20,975 TOTAL A/C FLT CYCLES BUT BEFORE FOR THE PERM REPAIR INSTRUCTIONS. DEC 23, 2021 OR THE ACCUMULATION OF 20,975 TOTAL A/C FLR CYCLES OK TO PLACE ON DIP PER ECRA 5720-03163 PART 3 ON OR BEFORE JANUARY 23, 2022 OR THE ACCUMULATION OF 21,975 TOTAL AIRCRAFT FLIGHT CYCLES. TOMC-APPROVAL

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