# SDR 2005FA0000388

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 31, 2005
- Submitted: March 22, 2005
- Operation: General aviation
- Aircraft: [N4989R](https://openairdocs.org/aircraft/N4989R), registered now
- Make and model: Cessna 172H
- Registry model: [Cessna 172H](https://openairdocs.org/model/cessna-172h) (OpenAirDocs)
- Aircraft serial: 17256343
- Engine: Cont O300D
- Propeller: Mcauly 1C172*
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Part number: 052340050
- Condition: Cracked
- Location: Lt Wing
- Part time: 12,536 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/2005FA0000388

## Discrepancy

WHILE CHANGING THE FLAP TRACKS ON THE LT WING 2 SMALL CRACKS, .2500 INCH LONG, EACH WERE NOTICED ON THE IB AFT WING SPAR AT THE IB FLAP TRACK ATTACH POINT.  PROBABLE CAUSE IS FATIGUE.  THIS IS A VERY HIGH TIME AIRCRAFT WITH OVER 12,000 HOURS TT.  IT HAS ALSO BEEN USED AS A FLIGHT TRAINER FOR ITS ENTIRE LIFE. (K)

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