# SDR QXEA2013111801495

- 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/QXEA2013111801495

## Discrepancy

CENTER WING FUEL PANEL 623AT HAS CORROSION ON NUMEROUS COUNTERSINK LOCATIONS. REMOVED CORROSION FROM COUNTERSINKS ON CENTER WING FUEL PANEL 623AT REF SRM 57-10-35, REPAIR-03, PG 202-203, PROCEDURE 6A, STEPS 1-2.  PERFORMED E/T INSP OF PANEL 623AT COUNTERSINK HOLES IAW NDTM 51-00-06. NO DEFECTS NOTED. MEASURED DIAMETER OF REWORKED COUNTERSINKS OF .6470 MAX AND FASTENER HEAD OF .0135 BELOW FLUSH MAX, COUNTERSINKS ARE WITHIN LIMITS REF SRM 57-10-35. APPLIED ALODINE ON COUNTERSINK HOLES ON PANEL 623AT, REF AMM TASK 51-25-16-390-801.

---
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.