# SDR HALA0800423

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2008
- Submitted: March 25, 2008
- Operation: Air carrier
- Aircraft: N591HA
- Make and model: Boeing 767-33A
- Registry model: [Boeing 767-33A](https://openairdocs.org/model/boeing-767-33a) (OpenAirDocs)
- Aircraft serial: 33423
- Aircraft time: 19,768 hours, 3,804 cycles
- System (JASC): [3416 · Altimeter, Barometric/Encoder](https://openairdocs.org/jasc/3416)
- Part: Altimeter
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA0800423

## Discrepancy

ETOPS SIGNIFICANT SYSTEM, AFTER APPROX 3HR OF FLIGHT F/OS ALTIMETER CLIMBED BETWEEN 160' TO 180' SHOWED 37180 SWITCHED TO ALT AIR DATA ALTIMETER INDICATED GOOD AT 37020.  TROUBLESHOT F/O ALTIMETER PER FIM 34-12-0.  NO FAULTS ON EITHER ADC, CHECK PITOT STATIC SYSTEM PER FIM 34-11-00/101.  ALL CHECKS OK FOR SERVICE.

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