# SDR CALA2026051316216

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2026
- Submitted: May 13, 2026
- Operation: Air carrier
- Aircraft: [N685UA](https://openairdocs.org/aircraft/N685UA), registered now
- Make and model: Boeing 767-3CB
- Registry model: [Boeing 767-3CB](https://openairdocs.org/model/boeing-767-3cb) (OpenAirDocs)
- Aircraft serial: 33467
- Aircraft time: 79,497 hours, 13,736 cycles
- Engine: Pwa PW4060
- Engine time: 2,549 hours, 339 cycles
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Oil System
- Condition: Leaking
- Location: Zone 400
- Stage of operation: TX
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026051316216

## Discrepancy

POWER PLANT OIL QUANTITY (01=L ENG, 02=R ENG) ZERO, ENGINE OIL P RESSURE WAS (ZERO, LOW) R ENG OIL QUANTITY AND PRESSURE AT 0 AFTER START. ENGINE OIL WAS 22 PRIOR TO START ENG 2 CREW REPORTED THAT RIGHT ENGINE WAS STARTED WITH NORMAL OIL PRESS / QTY, BUT OIL WENT TO ZERO DURING START, REACHED IDLE THEN, SHUTDOWN PER CHECK LIST.   ALSO RAMP REPORTED OIL LEAK PUDDLE UNDER ENGINE. WHQLM-EMC ARSHAD. 12MAY26. CREW DEBRIEFED. ENG REACHED IDLE AND OIL PX THEN DROPPED TO ZERO FOLLOWED BY OIL QTY TO ZERO. ENGINE SHUT DOWN 30SECS INTO STABLE IDLE CONDITION. VIBS NOTED TO BE NORMAL.  OIL LEAKAGE FOUND IN INLET AND COLD STREAM AS WELL AS CORE COWLINGS. RH GEAR NO4+8 EVIDENCE OF ENG OIL CONTAMINATION. INITIAL GVI FOUND B NUT/HOSE COMPLETELY OFF ON FUEL/OIL COOLER, ENG OIL OUT PORT. R ENG OIL READING ZERO. OIL ADDED: 28QTS. PLEASE RECHECK AFTER INITIAL DRY RUN AND IDLE RUN. AFTER CONSULTING TOMC, SEPARATE LP ITEMS RAISED FOR ALL REQD WORK, BUT NOT LIMITED TO, DEPENDENT ON FURTHER FINDINGS. ACFT SWAPPED AND NOW TOWING TO HGR FACILITY MAIN BEARING STRAINER HOUSING AND OIL INDICATION TUBE CHECKED FOR SECURITY AND ANY DAMAGE. NO FURTHER DEFECTS FOUND. DRY MOTOR, COMPRESSOR WASH AND ENGINE RUN CARRIED OUT IACHECKED AFTER ENGINE RUN AND STABLE AT 22 QUARTS. CONSIDERED SERVICEABLE.

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