# SDR ASAA1057450

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 23, 2010
- Submitted: February 25, 2010
- Operation: Air carrier
- Aircraft: [N518AS](https://openairdocs.org/aircraft/N518AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35693
- Aircraft time: 3,933 hours, 1,156 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7260 · Turbine Engine Accessory Drive](https://openairdocs.org/jasc/7260)
- Part: O-Ring
- Part number: J222P906
- Condition: Leaking
- Location: Nr 1 Gearbox
- Component: Gearbox
- Component part number: 3400465050
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA1057450

## Discrepancy

NR 1 ENG HAS EXCESSIVE OIL ON O/B COWL & AFTER ONLY 1 HR GROUND TIME A 6 INCH PUDDLE ON THE GROUND.  FOUND DRAIN PLUG FOR AGB LEAKING.  REPLACED O-RING FOR DRAIN PLUG ON AGB.  REF MM 12 13 11 600 803 STEP H (4) (A) (6) ADDED 1 QT OF OIL TO NR 1 ENG LEAK.  CHECK NR 1 ENG AGB OIL PLUG, NO LEAKS NOTED.

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