# SDR WRNA20080032

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 24, 2008
- Submitted: April 28, 2008
- Operation: Air carrier
- Aircraft: N508MC
- Make and model: Boeing 747230B
- Aircraft serial: 21644
- Aircraft time: 104,714 hours, 19,366 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Damaged
- Location: Bs 370 S14l
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WRNA20080032

## Discrepancy

DURING C CHECK, WHILE ACCOMPLISHING SSID F25-1, A CRACK WAS FOUND BY HFEC INSPECTION UNDER COUNTERSUNK HEAD AT STRINGER 14L STATION 370, CRACK EXTENDED 1/8 INCH AFT OF HOLE.  REMOVED DAMAGED SECTION OF SKIN IAW SRM 53-30-03 FIG 17.  FABRICATED FILLER AND DOUBLER IAW SRM 53-30-03 AND INSTALLED REPAIR IAW 51-30-02, 53-30-02, 51-10-06, AND 53-30-03 FIG 17.

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