# SDR UIEA2021110902374

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 9, 2021
- Submitted: November 10, 2021
- Operation: Air carrier
- Aircraft: [N1229A](https://openairdocs.org/aircraft/N1229A), registered now
- Make and model: Boeing 767306
- Aircraft serial: 28884
- Aircraft time: 17,162 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: None
- Condition: None
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2021110902374

## Discrepancy

APU FAILED TWICE PRIOR TO AND DURING ENGINE START APU FAULT LIGHT ILLUM BOTH TIMES.(<P>TRANSFER TO MDDR 156494, DUE DATE 19NOV21, CAT C, PER DDG 49-11-01.</P> / <P>REF LOG 1362074 ITEM 6: FOUND WIRE W198226-22 TERMINATED TO PIN 24 ON CONNECTOR D5822J. MOVED WIRE TO PIN 27 ON D5822J. CHKD CONTINUITY BETWEEN D7 ON D4088 AN D1 ON D10268, CHECK GOOD. ALSO C/ W AP- 20593 REV D. PERFORMED APU SYS CK WITH ENGS AND APU IN MES MODE DURING STARTS IAW WDM 80-11-11 AND 80-11-21. THIS CLEARS MDDR 156494.</P>)

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