# SDR QXEA2013111801498

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 11, 2013
- Submitted: November 18, 2013
- Operation: Air carrier
- Aircraft: N447QX
- Make and model: Bombdr DHC8402
- Aircraft serial: 4364
- Aircraft time: 6,491 hours, 6,738 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Access Panel
- Condition: Corroded
- 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/QXEA2013111801498

## Discrepancy

CENTER WING FUEL PANEL 522BT HAS CORROSION ON NUMEROUS COUNTERSINK LOCATIONS. REWORKED COUNTERSINKS ON CENTER WING FUEL PANEL 522BT IAW SRM 57-10-35 AND SRM 57-10-35, PG 202, STEP 6A (12EA).  PERFORMED E/T INSP ON PANEL 522BT COUNTERSINK HOLES IAW  NDTM 51-00-06.  NO DEFECTS NOTED.  MEASURED DIAMETER OF REWORKED COUNTERSINKS OF .6475 MAX AND FASTENER HEAD OF MAX OF .010 BELOW FLUSH.  REWORKED COUNTERSINKS ARE WITHIN LIMITS REF SRM 57-10-35.  APPLIED ALODINE ON COUNTERSINK HOLES ON PANEL 522BT REF AMM TASK 51-25-16-390-801.

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