Service difficulty report · Hf Comm · Boeing 737990ER

Difficulty date
February 16, 2021
Submitted
February 18, 2021
Operation
Air carrier
Aircraft
N478AS
Make and model
Boeing 737990ER
Aircraft serial
44105
Aircraft time
21,123 hours, 6,801 cycles
Part
Hf Comm
Condition
Inoperative
Location
Nr 2
Stage of operation
TX
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

NUMBER 2 HF INOP ON PREFLIGHT. GROUNDED - YES. VERIFIED INOP ON HF2 TUNING WINDOW. ACCOMPLISHED RADIO TUNING PANEL INOP DISPLAY TOGGLE REF B737-900 AMM 23-12-41-800-802. OP CK NORMAL.