# SDR 8HBR20230410050

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 29, 2023
- Submitted: April 10, 2023
- Operation: General aviation
- Filed by: [Hillsboro Aero Academy LLC, repair station 8HBR698C](https://openairdocs.org/faa-repair-station/8HBR698C/hillsboro-aero-academy-llc.md) (OpenAirDocs)
- Aircraft: [N924SH](https://openairdocs.org/aircraft/N924SH), registered now
- Make and model: Robsin R22BETA
- Aircraft serial: 3871
- Aircraft time: 8,339 hours
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Shroud
- Part number: A16939
- Condition: Buckled
- Component: Muffler Shroud, Robsin
- Component part number: A16939
- 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/8HBR20230410050

## Discrepancy

DURING THE AIRFRAME OVERHAUL 2 NEW CABIN HEAT MUFFLER SHROUDS PROVIDED BY ROBINSON DID NOT FIT ON THE MUFFLER PROPERLY CAUSING SEVERE BUCKLING AND DEFORMATION.

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