# SDR UIEA2020010600020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 5, 2020
- Submitted: February 4, 2020
- Operation: Air carrier
- Aircraft: [N1427A](https://openairdocs.org/aircraft/N1427A), registered now
- Make and model: Boeing 767306
- Aircraft serial: 28098
- Aircraft time: 80,520 hours, 17,328 cycles
- System (JASC): [8012 · Engine Start Valves/Controls](https://openairdocs.org/jasc/8012)
- Part: Start Valve
- Part number: 32911723
- Part serial: 528C
- Condition: Malfunctioned
- Location: Lt Engine
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2020010600020

## Discrepancy

APU INSUFFICIENT DUCT PRESSURE(<P>ITEM TRANSFERRED TO MDDR 123039 IAW DDG 49-11-01-01, CAT 'C'.</P><P>REF LOG PAGE 1178031: FOUND INSUFFICIENT AIR FLOW IN LH STARTER, REMOVED AND REPLACED LEFT ENG STARTER (OFF PART: P/N 3505448-5-1, S/N GRTA0349) AND START VALVE WITH DIFFERENT MODELS, PER AMM 80-11-01/80-11-02, OPS CHK GOOD. THIS CLEARS MDDR 123039.</P>)

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