# SDR UALA2011121206804

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 9, 2011
- Submitted: January 13, 2012
- Operation: Air carrier
- Aircraft: [N221UA](https://openairdocs.org/aircraft/N221UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30552
- Aircraft time: 44,106 hours, 5,512 cycles
- Engine: Pwa PW40903
- System (JASC): [2840 · Fuel Indicating System](https://openairdocs.org/jasc/2840)
- Part: Indicator
- Part number: 41310006
- Part serial: 570C
- Condition: Damaged
- Location: Fuel System
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011121206804

## Discrepancy

APU AUTO SHUTDOWN A SECOND TIME.  OIL TEMP SENSOR WOULD NOT TIGHTEN.  FOUND CRACK ON SENSOR BOSS.   REPLACED FUEL INDICATION ASSY REF MM, OP'S 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.