# SDR UIEA201904123840

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2019
- Submitted: April 16, 2019
- Operation: Air carrier
- Aircraft: [N1439A](https://openairdocs.org/aircraft/N1439A), registered now
- Make and model: Boeing 767-33A
- Registry model: [Boeing 767-33A](https://openairdocs.org/model/boeing-767-33a) (OpenAirDocs)
- Aircraft serial: 28495
- Aircraft time: 69,187 hours, 16,107 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Battery
- Part number: 018550000
- Part serial: 09052008CD9D
- Condition: Faulted
- Location: Apu
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA201904123840

## Discrepancy

UNABLE TO START APU WHILE TAXI IN. TRIED TWO ATTEMPTS. APU INOP.    PERFORMED FIM 49-11FT 987 & 988.  FOUND FAULTS WITH THE ECU.  PERFORMED FIM 49-11 FAULT TREE 988, FOUND APU BATTERY CHARGER TO BE SUSPECTED AT FAULT.  PERFORMED FIM 49-11 FT 988, VERIFIED BATTERY CHARGER AT FAULT.  REMOVED AND REPLACED APU BATTERY CHARGER IAW AMM 24-31-05-424-007.  REMOVED AND REPLACED THE APU BATTERY IAW AMM 24-31-04-004-001.

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