# SDR UIEA2018101802284

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 17, 2018
- Submitted: October 22, 2018
- Operation: Air carrier
- Aircraft: [N1709A](https://openairdocs.org/aircraft/N1709A), registered now
- Make and model: Boeing 767375
- Aircraft serial: 24086
- Aircraft time: 91,100 hours, 21,008 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Exciter
- Part number: 38880585
- Part serial: 92382735
- Condition: Malfunctioned
- Location: Apu
- Stage of operation: TX
- How discovered: C
- Nature of condition: G
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2018101802284

## Discrepancy

APU FAULT. APU INOP. PERFORMED OPS CHECK OF APU IAW AMMM 49-11-00. NO LIGHT OFF (NO EGT RISE) BITE CHECK OF ECU IAW FIM 49-11-FT958, ECU BITE SAID IGN UNIT. R&R APU EXCITER BOX IAW AMM 49-41-03. REMOVED AND REPLACED APU IGNITION LEAD IAW AMM 49-41-04, P/N 3888076-3, NSN. REMOVED AND REPLACED APU IGNITION PLUG IAW AMM 49-41-02. OPS CHECK GOOD.

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