# SDR 99UAL900494

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 27, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N652UA](https://openairdocs.org/aircraft/N652UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25390
- Engine: Pwa PW4060
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Starter
- Part number: 5198587
- Condition: Defective
- Location: Apu
- Stage of operation: CR
- Nature of condition: H, J, K
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99UAL900494

## Discrepancy

APU AUTO SHUTDOWN WITH 'APU OIL QTY' EICAS MSG DISPLAYED.  DIVERTED TO ASU .  *S/D*  APU STARTER WAS FOUND LEAKING WHICH CAUSED THE LOP SHUTDOWN.  REPLACED APU STARTER PER ENGINEER'S UPDATE.  ALSO, REPLACED GEARBOX SHUTOFF VALVE AS A PRECAUTIONARY ACTION.  SERVICED APU WITH OIL AND TESTED OK WITH NO FURTHER LEAKS AND OPERATION BACK TO NORMAL.

---
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.