Service difficulty report · Hf Comm · Boeing 737990ER

Difficulty date
June 26, 2021
Submitted
June 28, 2021
Operation
Air carrier
Aircraft
N428AS
Make and model
Boeing 737990ER
Aircraft serial
36353
Aircraft time
19,998 hours, 6,341 cycles
Part
Hf Comm
Condition
False Indication
Location
Nr 1
Stage of operation
NR
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

HF1 SHOWS FAIL IN WINDOW GROUNDED - YES. RESET TUNING PANEL OPS CHECK NORMAL REF B737-900 AMM 23-12-41-800-802.