SDR ASAA2019040868907

Service difficulty report · Satcom · Boeing 737890

Difficulty date: April 6, 2019
Submitted: April 8, 2019
Operation: Air carrier
Aircraft: N579AS
Make and model: Boeing 737890
Aircraft serial: 35187
Aircraft time: 45,963 hours, 13,645 cycles
System (JASC): 2300 · Communications System
Part: Satcom
Condition: Malfunctioned
Location: Nr 1 & 2
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 1&2 UNABLE TO TRANSMIT BUT COULD RECEIVE INCOMING VOICE TRANSMISSIONS. CPDLC WORKED. ACARS OVER SATCOM WORKED. GROUNDED - YES. PERFORMED SATCOM #1 & #2 VOICE TEST, INCOMING CALL & OUTGOING CALL TEST NORMAL PER B737-800 AMM 23-15-00-730-801.