# SDR DL76G011769

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 31, 2001
- Submitted: November 29, 2001
- Operation: Air carrier
- Aircraft: [N1605](https://openairdocs.org/aircraft/N1605), registered now
- Make and model: Boeing 767332
- Aircraft serial: 30198
- Aircraft time: 11,938 hours, 1,927 cycles
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adc
- Part number: 4040800911
- Part serial: 88021237
- Condition: Failed
- Location: E/E Bay
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL76G011769

## Discrepancy

AIR TURNBACK DUE TO AIRSPEED AND ALTITUDE EICAS DISAGREE.  ALTIMETERS SPLIT BY 400 FT AND INCREASING.  UNABLE TO ENTER RVSM.  CADC REPLACED.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.