# SDR GUUA02080603

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2006
- Submitted: March 13, 2006
- Operation: Air carrier
- Aircraft: [N280AS](https://openairdocs.org/aircraft/N280AS), registered now
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120231
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Pressure Switch
- Part number: 38760018
- Condition: Leaking
- Location: Apu
- Component: Apu, Garrtt, GTCP36150AA
- Component part number: 38003761
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GUUA02080603

## Discrepancy

DURING CLIMB RIGHT AIR CONDITION PACK STUCK IN THE HEAT SETTING.  CREW NOTICED OVERHEAT ODOR.  RETURNED TO NAS.  REPLACED APU OIL PRESSURE SWITCH.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.