# SDR FDEA201001070041

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2010
- Submitted: January 12, 2010
- Operation: Air carrier
- Aircraft: [N921FD](https://openairdocs.org/aircraft/N921FD), registered now
- Make and model: Boeing 757-23A
- Registry model: [Boeing 757-23A](https://openairdocs.org/model/boeing-757-23a) (OpenAirDocs)
- Aircraft serial: 24924
- Aircraft time: 68,004 hours, 21,149 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Corroded
- Location: Zone 200
- 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/FDEA201001070041

## Discrepancy

FOUND DENTED AREA WITH LIGHTENING STRIKE IN THE CTR & SEVERAL PIN HOLE  PITS SURROUNDING THE AREA AT S14R BS 1247.5 IN LAP SEAM AREA.  LENGTH OF DAMAGE .156, FOUND TO BE WITHIN LIMITS IAW SRM 53-00-01.  DRILLED OUT DAMAGE WITH A .159 DRILL BIT IAW SRM 53-00-01, SECT 1 ITEM 3. PERFORMED HFEC IAW NTM   51-00-16 PT 6.  NO DEFECTS NOTED.  UPSIZED HOLE FROM .156 TO .1935 IAW SRM 53-00-01, SET 1 ITEM 3. TREATED & PRIMED AREA IAW SRM 51-20-01. INSTALLED RIVET AT BS 1247.5, S14R,  IAW SRM 51-40-02.  MAJOR REPAIR.

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