# SDR HK0Y202201

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2022
- Submitted: April 21, 2022
- Operation: General aviation
- Filed by: [Hong Kong Aero Engine Services Limited, repair station HK0Y765N](https://openairdocs.org/faa-repair-station/HK0Y765N/hong-kong-aero-engine-services-limited.md) (OpenAirDocs)
- Make and model: Boeing 777
- Engine: Rroyce RB211TRENT89
- Engine time: 51,808 hours, 7,657 cycles
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: None
- Condition: None
- 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/HK0Y202201

## Discrepancy

OMNI AIR INTERNATIONAL TRENT 800 ENGINE (ESN 51172) WAS INDUCTED INTO HAESL FOR THE RECTIFICATION OF LPT OIL LEAKAGE. UPON INVESTIGATION & INSPECTION, IT WAS REVEALED THAT THE FILTER OF CENTRAL OIL FEED TUBE (72-52-33-02-180) P/N: EU49751 WAS MISSING AND THE BOLTS (72-52-52-01-252) P/N: AS48512 WAS INCORRECTLY INSTALLED. HAESL TECHNICAL SERVICES DEPARTMENT HAD SENT INVESTIGATION REPORT TO THE OPERATOR. OPERATOR WILL ADDRESS THE ISSUE WITH THE MECHANIC.

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