# SDR CALA2017121504463

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 15, 2017
- Submitted: December 16, 2017
- Operation: Air carrier
- Aircraft: [N66051](https://openairdocs.org/aircraft/N66051), registered now
- Make and model: Boeing 767424ER
- Aircraft serial: 29446
- Aircraft time: 74,397 hours, 10,570 cycles
- System (JASC): [3416 · Altimeter, Barometric/Encoder](https://openairdocs.org/jasc/3416)
- Part: Altimeter
- Part number: LK352
- Part serial: 1975
- Condition: Out Of Tolerance
- Location: Standby
- Part time: 34,054 hours, 6,790 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2017121504463

## Discrepancy

STBY ALT HANGS UP THEN  JUMPS 300 FEET DURING CLIMB. REMOVED AND REPLACED THE STBY ALT IAW 34-13-06, OPS CHK NORMAL, A/C REMAINS FULLY CAT QUALIFIED.

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