# SDR QXEA2013051701014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 17, 2013
- Submitted: May 24, 2013
- Operation: Air carrier
- Aircraft: N413QX
- Make and model: Bombdr DHC8402
- Aircraft serial: 4060
- Aircraft time: 28,298 hours, 29,161 cycles
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Condition: Corroded
- 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/QXEA2013051701014

## Discrepancy

LEFT WING FRONT SPAR UPPER FLANGE HAS BARE METAL WITH POSSIBLE FRETTING CORROSION FROM STA YW 42 TO 155.  REMOVED CORROSION IAW SRM 51-21-00-00-02, REV 12.  VERIFIED AFFECTED AREAS TO BE CRACK FREE REF NDTM PART 6, TASK 51-00-01-250-801. MECHANICALLY MEASURED MINIMUM REMAINING THICKNESS .199".  REMAINING MAT THICKNESS IS WITHIN LIMITS IAW RD8/4-57-2111, ISSUE 1 DATED 6MAY2013.  ROTARY FLAP PEENED TO .008A 100 PERCENT COVERAGE IAW RD8/4-57-2111, ISSUE 1.  ALODINED AND PRIMED IAW RD8/4-57-2111, ISSUE 1. APPLIED TEFLON TAPE TO SURFACE IAW RD8/4-57-2111, ISS 1. COMPLIED WITH TC RD8/4-57-2111, WO 143293.

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