# SDR IPXA2023103012409

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 2023
- Submitted: October 30, 2023
- Operation: Air carrier
- Aircraft: [N313UP](https://openairdocs.org/aircraft/N313UP), registered now
- Make and model: Boeing 767-34AF
- Registry model: [Boeing 767-34AF](https://openairdocs.org/model/boeing-767-34af) (OpenAirDocs)
- Aircraft serial: 27764
- Aircraft time: 68,853 hours, 23,359 cycles
- System (JASC): [3416 · Altimeter, Barometric/Encoder](https://openairdocs.org/jasc/3416)
- Part: Altimeter
- Part number: 4040800917
- Part serial: 1940570
- Condition: Faulted
- Location: Unknown
- Stage of operation: CL
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2023103012409

## Discrepancy

PASSING THOUGH 12,000 FT RECEIVED ALT DISAGREE HSG, ALTIMETERS WHERE OFF BY 400 FT , RIGHT SIDE APPEARED TO BE INCORRECT [T3F18E0037HA3] COMPLETED ALTIMETRY SYSTEM TEST REF AMM 34-11-00-730-816-001. CONFIRMED F.O ALTIMETER 400€™ SPLIT. R&R RH ADC REF AMM 34-12-01 OPS CHECK NORMAL. ALTIMETRY SYSTEM TEST REF AMM 34-11-00-730-816-001 NO DEFECTS NOTED. ALTIMETER SPLIT BETWEEN CAPT AND F.O. @ 10,000€™ = 0€™  & 25,000€™ = 10€™.

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