# SDR ASMF200504021

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2005
- Submitted: April 26, 2005
- Operation: Air carrier
- Aircraft: N803ML
- Make and model: Doug DC-9-87
- Registry model: [Doug DC-9-87](https://openairdocs.org/model/mcdonnell-douglas-dc-9-87) (OpenAirDocs)
- Aircraft serial: 49726
- Aircraft time: 42,840 hours, 25,086 cycles
- System (JASC): [3416 · Altimeter, Barometric/Encoder](https://openairdocs.org/jasc/3416)
- Part: Cadc
- Part number: HG280D80
- Part serial: 082141
- Condition: Failed
- Location: Left Side
- Part time: 12,185 hours, 7,502 cycles
- Stage of operation: IN
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASMF200504021

## Discrepancy

TECHNICAL PERSONNEL INFORMED THAT DURING TRANSIT CHECK AIR SPEED FLAG WAS SHOWN IN LEFT AIR SPEED INDICATOR AND ALTIMETER.  TESTS WERE PERFORMED AND FAIL CONTINUED.  CADC NR 1 WAS REPLACED IAW MM 34-16-01, TESTED CORRECT.

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