# SDR 97ZZZX1893

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N8591B](https://openairdocs.org/aircraft/N8591B), registered now
- Make and model: Cessna 172
- Registry model: [Cessna 172](https://openairdocs.org/model/cessna-172) (OpenAirDocs)
- Aircraft serial: 36291
- System (JASC): [5341 · Fuselage, Wing Attach Fittings](https://openairdocs.org/jasc/5341)
- Part: Bearing Attach
- Part number: 2870512122
- Condition: Corroded
- Location: Lt/Rt Wing Spar
- Part time: 2,363 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX1893

## Discrepancy

FRONT AND AFT BLOCKS (RIGHT AND LEFT SIDES) FOR WING SPAR ATTACHMENT SHOW  HEAVY EXFOLIATION BETWEEN MAIN BOLT SPAR ATTACHMENT AND HOLD-DOWN BOLTS FOR BLOCK, MAY BE UNDETECTABLE WITH WINGS ATTACHED, EVEN WITH SKIRTING REMOVED.  MIGHT POSSIBLY DO A MIRROR INSPECTION; IF NOT, WOULD NEED TO MAKE SOME FORM OF PERIODIC INSPECTION SCHEUDLE TO PULL WINGS TO INSPECT INNER BLOCK AREA AND BOLTS FOR CORROSION AND/OR WHEN APPROPRIATE, PULL BLOCK TO INSPECT BACK PORTION AND BOLTS.  SHOULD BE NOTED THAT AIRCRAFT SAT IN AN OPEN FIELD FOR APPROXIMATELY TEN YEARS.

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