# SDR UIEA2021030800492

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2021
- Submitted: March 12, 2021
- Operation: Air carrier
- Aircraft: [N662GT](https://openairdocs.org/aircraft/N662GT), registered now
- Make and model: Boeing 767-31A
- Registry model: [Boeing 767-31A](https://openairdocs.org/model/boeing-767-31a) (OpenAirDocs)
- Aircraft serial: 27619
- Aircraft time: 78,812 hours, 15,665 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Switch
- Part number: 38750483
- Part serial: 9919SOCN
- Condition: Inoperative
- Location: Apu Generator
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2021030800492

## Discrepancy

APU INOP.(<P>TRANSFER TO MDDR 143540 IAW DDG 49-11-01B CAT C DUE DATE 11MAR21 PLAC INSTALLED. DISPATCH NOTIFIED.</P><P>LP 1332457: T/S PER FIM 49-11-998 AND FOUND GEN FILER DELTA P SWITCH FAULTY. REMOVED AND REPLACED DIFF PRESS SWITCH PER AMM 49-27-15, OPS OK. MCC NOTIFIED. PLACARDS REMOVED.THIS CLEARS MDDR #143540.</P>)

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