# SDR 98ZZZX1326

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 3, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N98437](https://openairdocs.org/aircraft/N98437), registered now
- Make and model: Cessna 421C
- Registry model: [Cessna 421C](https://openairdocs.org/model/cessna-421c) (OpenAirDocs)
- Aircraft serial: 421C0040
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Rib Assy
- Part number: 51221103
- Condition: Buckled
- Location: Lt Ws 58.94
- Part time: 5,917 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/98ZZZX1326

## Discrepancy

DURING PHASE INSPECTION, RIB AT LT WS 58.94 WAS FOUND BUCKLED.  DAMAGE EXTENDED FROM 2.50 INCHES AFT OF MAIN SPAR AT TOP TO 7 INCHES AFT OF MAIN SPAR AT BOTTOM.  SUSPECT CAUSED BY HARD LANDING.  MANUFACTURER HAS BEEN CONTACTED FOR RECOMMENDATIONS.

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