# SDR 2026FA0000283

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2026
- Submitted: April 22, 2026
- Operation: General aviation
- Aircraft: [N621FW](https://openairdocs.org/aircraft/N621FW), registered now
- Make and model: Cirrus SR22
- Registry model: [Cirrus SR22](https://openairdocs.org/model/cirrus-design-sr22) (OpenAirDocs)
- Aircraft serial: 2594
- Aircraft time: 2,974 hours
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Brake Disc
- Part number: RA16402504
- Part serial: LOT0952322923
- Condition: Cracked
- Location: Zone 700
- Part time: 135 hours
- Stage of operation: IN
- How discovered: W
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000283

## Discrepancy

CRACKED - DURING ANNUAL INSPECTION, THE OPPOSITE BRAKE DISC WAS FOUND BADLY CRACKED, SEE SDR 2026FA000282. ADDITIONAL INSPECTION PERFORMED ON LH BRAKE DISC WITH 10X MAGNIFYING GLASS ON INSIDE 90 DEGREE BEND RADIUS WHERE THE BODY MEETS THE FLANGE. POSSIBLE CRACK INDICATION OBSERVED NEAR ONE OF THE BOLT HOLES. DISC REMOVED FOR FLUORESCENT PENTETRANT INSPECTION. ONE 1/16" SIZE AREA OF CHIPPED SURFACE TREATMENT FOUND ABOVE ONE BOLT HOLE. VERY FAINT CRACK INDICATIONS OBSERVED UNDER UV LIGHT IN THE INSIDE BEND RADIUS AT EACH BOLT HOLE. EACH CRACK APPROXIMATELY 3/4" LONG. DISC INSTALLED 6/26/25 AND WAS IN SERVICE 10 MONTHS.

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