# SDR UALA2011040401594

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2011
- Submitted: April 4, 2011
- Operation: Air carrier
- Aircraft: [N577UA](https://openairdocs.org/aircraft/N577UA), registered now
- Make and model: Boeing 757222
- Aircraft serial: 26693
- Aircraft time: 60,004 hours, 21,167 cycles
- Engine: Pwa PW2037
- System (JASC): [3444 · Ground Proximity System](https://openairdocs.org/jasc/3444)
- Part: Radio Altimeter
- Part number: 8220334002
- Part serial: 1152
- Condition: Faulty
- Location: Left
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011040401594

## Discrepancy

WHEN THRUST IDLE IN DESCENT EICAS GEAR NOT DOWN CAME ON L RA YELLOW BOX FLASHING ON AND OFF.  REPLACED LEFT RADIO ALTIMETER IAW MM.  LANDING CONFIG SYS TEST CHECKED OKAY.

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