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(WARNING)
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WHITE MESSAGE Require immediate crew attention. These messages are accompanied by flashing master warning, triple chime attenson with or without voice message or dedicated tone. Require immediate crew awareness and future crew action may be required in the form of alternate system selection or performance limitation. These message are accompanied by flashing master caution and a single chime. Indicate safe or normal system operation which require crew awareness, over and above the dark cockpit philosophy. Indicate minor failures or reduction in systems capability, which require no crew action.

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04/26/21

Message Overview:

Message Name:

AIR DATA 100 FEET OFF FROM FIELD ELEVATION

Identifier: 341OBS011
Effectivity: AIRCRAFT 20501 - 20999
System: Navigation
Associated CAS: None
System Description: 34-17-00
Schematic Diagram: 34-13-00
Wiring Diagram: 34-13-01

Message Description:

Air Data altitude 100 feet off from field elevation. Pitot tube plumbing has partial obstruction caused by water or other debris in the lines.

17_adc_indications

Possible Causes:

  • Partial obstruction in Pitot Tube Plumbing

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

General Visual Inspection of the Pitot-Static Visual Drain after Adverse Weather Operations AMM 05-51-41-210-801
Pitot-Static System Purging AMM 34-11-00-100-801
Functional Test (Leak Test) of the Pitot-Static System AMM 34-11-00-790-801
Functional Test (Leak Test) of the Standby Pitot-Static System AMM 34-11-00-790-802
Detailed Inspection of the Static Ports AMM 34-11-00-220-801
Pitot Line P1 Contamination Removal AMM 34-11-01-100-806
Pitot Line P2 Contamination Removal AMM 34-11-01-100-807
Static Line Pilot's S1/S2 Contamination Removal AMM 34-11-01-100-808
Static Line Copilot's S1/S2 Contamination Removal AMM 34-11-01-100-809
Removal of the Pitot-Static Probe AMM 34-11-01-000-801
Installation of the Pitot-Static Probe AMM 34-11-01-400-801
Alignment Check of the Pitot-Static Probes AMM 34-11-01-820-801
Detailed Inspection of the P3 Pitot Probe AMM 34-11-01-220-801
Detailed Inspection of the Pitot-Static Probe AMM 34-11-01-220-802
Cleaning/Restoration of the Pitot-Static Probes AMM 34-11-01-160-801
Detailed Inspection of the P3 Pitot Probe AMM 34-11-03-220-801
Cleaning of the Standby Pitot Probe AMM 34-11-03-160-801
Removal of the S3 Static Ports AMM 34-11-05-000-801
Installation of the S3 Static Ports AMM 34-11-05-400-801
Servicing of the Pitot-Static Visual Drain AMM 34-11-09-616-801
Wiring - Maintenance Practices - ALL SPM 20-12-00-02
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02
Electrical Connectors - Maintenance Practice - ALL SPM 20-20-00-02

Troubleshooting Recommendations:

  1. Perform Pitot-Static System purging per AMM 34-11-00-100-801.
  2. Do close out.

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