SDR IPXA2018062731144

Service difficulty report · Transceiver · Boeing 75724APF

Difficulty date: June 24, 2018
Submitted: June 27, 2018
Operation: Air carrier
Aircraft: N454UP
Make and model: Boeing 75724APF
Aircraft serial: 25475
Aircraft time: 33,752 hours, 16,913 cycles
System (JASC): 2310 · HF Communications System
Part: Transceiver
Condition: Inoperative
Location: Hf Comm
Stage of operation: IN
How discovered: O
Nature of condition: O
Precautionary procedure: K

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

What was found

ATB - TRANSMIT ON BOTH L/R HF RADIOS FROM ALL SEVEN (7) TRANSMIT POSITIONS HF RADIOS WOULD TUNE INITIALLY AND THEN WOULD NOT TRANSMIT AFTER THAT. TRIED ALL FREQ RANGES FROM ALL POSITION, HF RADIOS DID RECEIVE AND CELL CALL WORKED ON RT HF. R&R HF TRANSCEIVER PER AMM 23-11-03, R&R RT HF COUPLER PER AMM 23-11-01, OPS CHECK GOOD, SEE ITEM 2 FOR L HF INOP.

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