# SDR UIEA2021111402415

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 14, 2021
- Submitted: November 16, 2021
- Operation: Air carrier
- Aircraft: [N1229A](https://openairdocs.org/aircraft/N1229A), registered now
- Make and model: Boeing 767306
- Aircraft serial: 28884
- Aircraft time: 75,156 hours, 17,179 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: None
- Part number: 38760483
- Part serial: 92506251424
- Condition: None
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2021111402415

## Discrepancy

APU DROPPED OFF LINE TWICE PRIOR TO BLOCK OUT(<P>TRANSFERRED TO MDDR 156768 IAW MEL 49-11-01A, <SPAN>CAT C  DUE DATE 24NOV21. </SPAN></P> / <P><SPAN>APU ECU INDICATES " GEN FILTER" AS CAUSE FOR SHUT DOWN </SPAN></P> / <P>16NOV21 - LOG 1429853 - ITEM #10 - CVG - REMOVED AND REPLACED APU OIL FILTER DIFFERENTIAL PRESS SWITCH IAW AMM 49-27-15. OPS CKS AND LK  CKS GOOD THIS CLEARS MDDR 1429853.</P>)

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