# SDR 98ZZZX4572

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 6, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N782WW](https://openairdocs.org/aircraft/N782WW), registered now
- Make and model: Cessna 172R
- Registry model: [Cessna 172R](https://openairdocs.org/model/cessna-172r) (OpenAirDocs)
- Aircraft serial: 17280295
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Web
- Part number: 05530311
- Condition: Cracked
- Location: Firewall
- Part time: 592 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/98ZZZX4572

## Discrepancy

DURING A ROUTINE INSPECTION, THE FIREWALL WAS FOUND CRACKED AT THE COWL MOUNT JUST BELOW THE BATTERY BOX.  THE CRACK WAS APPROXIMATELY 4 INCHES IN LENGTH.  SUBMITTER STATED POSSIBLE CAUSE AS USE OF A THINNER FIREWALL AND NO LOAD BEARING SURFACE FOR THE LORD MOUNT BRACKET WHICH FLEXES AS ENGINE RUNS.

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