SDR ASMF20170717008

Service difficulty report · Coax · Boeing 73781Q

Difficulty date: June 29, 2017
Submitted: July 17, 2017
Operation: Air carrier
Aircraft: N520AM
Make and model: Boeing 73781Q
Aircraft serial: 29052
Aircraft time: 54,609 hours, 19,707 cycles
System (JASC): 3430 · Landing and Taxi Aids
Part: Coax
Condition: Damaged
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

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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