# SDR P5CA2021091300343

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 13, 2021
- Submitted: September 15, 2021
- Operation: Air carrier
- Aircraft: N643GT
- Make and model: Boeing 767-3JHF
- Registry model: [Boeing 767-3JHF](https://openairdocs.org/model/boeing-767-3jhf) (OpenAirDocs)
- Aircraft serial: 37809
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Ignition Unit
- Part number: 38880585
- Part serial: 020218030
- Condition: Inoperative
- Location: Apu
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA2021091300343

## Discrepancy

APU FAILS TO START WITH NO IGNITION HEARD.(<P>APU ECU BITE C/OUT. LRU FAULTY-IGN UNIT FAULTED. T/SHOOTING C/OUT IAW FIM 49-11 FAULT TREE A10. APU IGNITION UNIT REQ'S REPLACEMENT. NIL SPARES AVAILABLE. OPERATE IAW MEL 49-11-01A. HMG TEST SATIS IAW AMM 24-25-00-715-001. MDDR 153466 CAT C EXPIRES 23SEP21. DISP: JZ @1814Z.</P> / <P>LP <SPAN>1310994: </SPAN><SPAN>APU IGNITION UNIT REPLACED IAW AMM 49-41-03/401 REV 132 22DEC20. APU NOW SERVICEABLE. DMI 153466 CLOSED. MCC: JOL TIME: 2216Z </SPAN></P>)

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