# SDR 2026FA0000074

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 2, 2026
- Submitted: February 3, 2026
- Operation: General aviation
- Aircraft: [N655CP](https://openairdocs.org/aircraft/N655CP), registered now
- Make and model: Cessna 182T
- Registry model: [Cessna 182T](https://openairdocs.org/model/cessna-182t) (OpenAirDocs)
- Aircraft serial: 18281655
- Aircraft time: 4,563 hours
- Engine: Lyc IO540AB1A5
- Engine time: 4,570 hours
- Propeller: Mcauly B3D36C431
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Doubler
- Part number: 075360026
- Condition: Cracked
- Location: Zone 100
- Part time: 4,563 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/2026FA0000074

## Discrepancy

DURING FIREWALL CLEANING/INSPECTION DURING ANNUAL/100HR INSPECTION, A CRACK, APPROXIMATELY 2.3 IN LENGTH WAS DISCOVERED IN THE UPPER RADIUS OF THE LEFT HAND SIDE OF THE LOWER FIREWALL DOUBLER DIRECTLY THROUGH THE TOP RIVET THAT HOLDS THE PARKING BRAKE BRACKET (PN 0713070-20) TO THE FIREWALL ON THE CABIN SIDE. THERE WERE SOME SMALL DIMPLES IN THE FIREWALL ITSELF ABOVE THIS AREA. IT WOULD APPEAR THAT THE ENGAGING OF THE PARKING BRAKE (PERHAPS TOO OVERZEALOUSLY) FLEXES THIS AREA AND CAUSE THE CRACK OVER TIME. WE RECENTLY (WITHIN THE LAST 3 MONTHS) HAD ANOTHER CAP AIRCRAFT WITH THE EXACT SAME CRACK, AT SIMILAR TIME IN SERVICE.

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