# SDR ASMF20180918001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 2018
- Submitted: September 18, 2018
- Operation: Air carrier
- Aircraft: [N423AM](https://openairdocs.org/aircraft/N423AM), registered now
- Make and model: Boeing 737-73V
- Registry model: [Boeing 737-73V](https://openairdocs.org/model/boeing-737-73v) (OpenAirDocs)
- Aircraft serial: 32423
- Aircraft time: 47,189 hours, 28,918 cycles
- System (JASC): [3445 · Air Collision Avoidance System](https://openairdocs.org/jasc/3445)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASMF20180918001

## Discrepancy

AIRCRAFT RETURNED OF FLIGHT DUE TO DURING CLIMB MAP FLAG AND TCAS OFF APPEARED ON MFD. MAINTENANCE PERSONNEL PERFORMED FAULT ISOLATION PROCEDURE TO TCAS IAW FIM 34-45 TASK 801, ADIRUS IAW FIM 31-21 TASK 801 AND PA IAW FIM 22-11 TASK 801, NO CONFIRMING FAILURE, TESTED CORRECT.

---
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.