# SDR 2026FA0000280

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 2026
- Submitted: April 21, 2026
- Operation: General aviation
- Aircraft: [N633SR](https://openairdocs.org/aircraft/N633SR), registered now
- Make and model: Cirrus SR22
- Registry model: [Cirrus SR22](https://openairdocs.org/model/cirrus-design-sr22) (OpenAirDocs)
- Aircraft serial: 2014
- Aircraft time: 4,626 hours
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Brake Disc
- Part number: RA16402504
- Part serial: LOT0952322923
- Condition: Failed
- Location: Zone 700
- Part time: 323 hours
- Stage of operation: TX
- How discovered: C
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000280

## Discrepancy

ATTACHEMENT FLANGE SHEARED OFF - ON TAXI, PILOT DISCOVERED AIRPLANE WOULD ONLY TURN RIGHT. AIRCRAFT HAS CASTERING NOSEWHEEL AND USES BRAKES TO STEER. AFTER SHUTDOWN, LH BRAKE DISC/ROTOR FOUND COMPLETELY SHEARED OFF AT 90 DEGREE BEND WHERE THE BODY TRANSITIONS TO THE WHEEL ATTACHMENT FLANGE. SIGNS OF HEAVY CORROSION AT FLANGE BEND THAT RESULTED IN CIRCUMFERENTIAL CRACK. DISC WAS INSTALLED 02/03/2023 AND WAS IN SERVICE 2 YEARS AND 2 MONTHS.

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