# SDR 8HBR20261010088

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 30, 2026
- Submitted: October 10, 2026
- 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: [N46889](https://openairdocs.org/aircraft/N46889), registered now
- Make and model: Cessna 152
- Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (OpenAirDocs)
- Aircraft serial: 15283133
- Aircraft time: 26,827 hours
- Engine: Lyc O235L2C
- Engine time: 8,622 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder Head
- Part number: SL10302A21P
- Part serial: 23000003537
- Condition: Rotated
- Location: Engine
- Part time: 1,127 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/8HBR20261010088

## Discrepancy

DURING A ROUTINE ANNUAL INSPECTION CYLINDER #3 HAD OIL LEAKING AND A DAMAGED SEAL ON THE EXHAUST PUSH ROD TUBE. WHILE PERFORMING THE WORK TO REPLACE THE SEAL, THE TECHNICIAN FOUND IT DIFFICULT TO GET THE TUBE SEATED PROPERLY. UPON FURTHER INSPECTION IT APPEARED THAT THE CYLINDER HEAD HAD ROTATED ON THE BARREL AND WAS NO LONGER IN THE PROPER POSITION.

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