# SDR 2001F00222

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 25, 2001
- Submitted: August 24, 2001
- Operation: Air carrier
- Aircraft: [N506MC](https://openairdocs.org/aircraft/N506MC), registered now
- Make and model: Boeing 747-2D3B
- Registry model: [Boeing 747-2D3B](https://openairdocs.org/model/boeing-747-2d3b) (OpenAirDocs)
- Aircraft serial: 21252
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Part number: 65B01718520
- Condition: Cracked
- Location: Fuselage
- Part time: 73,880 hours
- 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/2001F00222

## Discrepancy

DURING INSPECTION FOUND FRAME WEB CRACKED AT BS 500, STRINGER 9L AND STRINGER 8 TO 10AR.  STOP DRILLED ALL CRACKS.  FABRICATED REPLACEMENT DOUBLERS.  INSTALLED DOUBLER AT STRINGER 9L LOCATION AND AT STRINGER 8 TO 10AR LOCATION PER STANDARD PRACTICES OF THE SRM. (M)

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