# SDR AALA2018072769008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2018
- Submitted: July 27, 2018
- Operation: Air carrier
- Aircraft: [N996NN](https://openairdocs.org/aircraft/N996NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31248
- Aircraft time: 6,281 hours, 2,579 cycles
- Engine: Cfmint CFM567B243
- Engine time: 6,281 hours, 2,579 cycles
- System (JASC): [8012 · Engine Start Valves/Controls](https://openairdocs.org/jasc/8012)
- Part: Start Valve
- Part number: 32896305
- Condition: Faulted
- Location: Lt Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA2018072769008

## Discrepancy

DURING CRUISE, FL380, THE LT ENGINE OIL INDICATED ZERO,  FOLLOWED BY LOW OIL PRESSURE.  CONDUCTED A PRECAUTIONARY SHUTDOWN OF THE ENGINE IAW QRH.  SINGLE ENGINE TIME 42 MINUTES.  THE ACFT WAS GROUNDED.  REPLACED STARTER VALVE IAW AMM 80-11-03-402,  REPLACED THE STARTER AND STARTER SHAFT IAW AMM 80-11-01-400,  ACCOMPLISHED AMM 71-00-00-210-802-F00,  REPLACED THE NR 1 ENGINE STARTER QUADRING ADAPTER AND CHECKED FOR DEBRIS IAW MM 80-11-02-400.  ACCOMPLISHED ALL STEPS OF MIC 70357514. LEAK CHECKED AND ENGINE TESTS CHECKED SATISFACTORY.

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