Service difficulty report · Transceiver · Boeing 737990ER

Difficulty date
February 2, 2021
Submitted
February 4, 2021
Operation
Air carrier
Aircraft
N419AS
Make and model
Boeing 737990ER
Aircraft serial
41734
Aircraft time
29,388 hours, 9,467 cycles
Part
Transceiver
Part number
8220990004
Part serial
40F88C
Condition
Inoperative
Location
Nr 2 Hf Comms
Part time
29,380 hours, 9,465 cycles
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

HF 2 RADIO RECEIVES OKAY, SELCAL HF2 OKAY - BUT NO TRANSMIT OFF EITHER CA OR FO ACP OF HG 2. GROUNDED - YES. REMOVED AND REPLACED #2 HF TRANSCEIVER PER B737-900 AMM 23-11-21. ETOPS GROUND VERIFICATION SUCCESSFUL.