SDR ASAA2016010714682

Service difficulty report · Satcom · Boeing 737990ER

Difficulty date: January 7, 2016
Submitted: January 12, 2016
Operation: Air carrier
Aircraft: N481AS
Make and model: Boeing 737990ER
Aircraft serial: 44106
Aircraft time: 1,498 hours, 475 cycles
System (JASC): 2300 · Communications System
Part: Satcom
Condition: Inoperative
Stage of operation: NR
How discovered: 9
Nature of condition: O
Precautionary procedure: O

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

What was found

SATCOM INOPERATIVE. WAS ABLE TO SEND CALL, RECEIVE AUDIO BUT NOT TRANSMIT. ALSO SATCOM INTERFACE IN FMC WAS GLITCHY; I.E., MENUS WOULD CYCLE WITH NO BUTTON PUSHED. PRONOUNCED ECHO HEARD DURING TRANSMITTING. ACFT GROUNDED. ACCOMPLISHED SATCOM LED BEHAVIOR CHECK, CHECKS GOOD, ALL GREEN LIGHTS NOTED. ACCOMPLISHED SATCOM COMM SYS TEST, OPS NORMAL REF AMM 23-15-00-730-801.