# SDR ASMF20170717008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 29, 2017
- Submitted: July 17, 2017
- Operation: Air carrier
- Aircraft: N520AM
- Make and model: Boeing 737-81Q
- Registry model: [Boeing 737-81Q](https://openairdocs.org/model/boeing-737-81q) (OpenAirDocs)
- Aircraft serial: 29052
- Aircraft time: 54,609 hours, 19,707 cycles
- System (JASC): [3430 · Landing and Taxi Aids](https://openairdocs.org/jasc/3430)
- Part: Coax
- Condition: Damaged
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASMF20170717008

## Discrepancy

DURING TRANSIT CHECK CAPTAIN REPORTED IAS/MACH STAYS IN 100 OF ALTITUDE BUT SHOWS 50000 FT OF ALTITUDE AND NO NAV INDICATION, MAINTENANCE PERFORMED FIM PROCEDURE TO NAVIGATION CONTROL PANEL IAW FIM 34-31, TASK 808, AND COAXIAL VOR 1 RF POWER DRIVER WAS RECONNECTED IAW SSM 34-51-11, ALL TESTED CORRECT.

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