# SDR UIEA2021062801436

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 27, 2021
- Submitted: July 1, 2021
- Operation: Air carrier
- Aircraft: [N641GT](https://openairdocs.org/aircraft/N641GT), registered now
- Make and model: Boeing 767-38E
- Registry model: [Boeing 767-38E](https://openairdocs.org/model/boeing-767-38e) (OpenAirDocs)
- Aircraft serial: 25132
- Aircraft time: 90,291 hours
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil Cooler
- Part number: 1601761
- Part serial: 3830
- Condition: Malfunctioned
- 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/UIEA2021062801436

## Discrepancy

LOW APU DUCT PRESSURE DURING START DUE TO HIGH EGT.(<P>APU PNEUM. PLACED ON MEL 49-11-01-01 CAT C DEFRRAL # 149299. RS 1437.</P> / <P>27JUN21 LP 1402166 ITEM 3: REMOVED AND REPLACED APU AIR/OIL COOLER IAW B767 AMM 49-27-00. PERFORMED LEAK AND OPS CHECKS/LEAK CHECK WITH NO DEFECTS NOTED IAW B767 AMM 49-00-00. THIS CLEARS DEFERRAL 149299. MCC NOTIFIED.</P>)

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