# SDR UALA2012031401667

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2012
- Submitted: April 13, 2012
- Operation: Air carrier
- Aircraft: [N642UA](https://openairdocs.org/aircraft/N642UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25092
- Aircraft time: 88,158 hours, 14,091 cycles
- Engine: Pwa PW4060
- System (JASC): [2920 · Hydraulic System, Auxiliary](https://openairdocs.org/jasc/2920)
- Part: Switch
- Condition: Faulty
- Location: Rat
- Stage of operation: IN
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012031401667

## Discrepancy

AFTER APU START AT FL350, EICAS RAT UNLOCKED LIGHT ILLUMINATED.  SUSPECT RAT DOOR SLIGHTLY OPEN WITH POWER TRANSIENT.  NO VIBRATION FELT. REFLY.  RMV'D & RPLC'D S369 RAT UP LIMIT SWITCH PER MM.  OPS CHECKED GOOD PER MM.

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