Loss of one or two HF transmission/reception

TASK 23-11-00-810-823-A
Loss of one or two HF transmission/reception

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 23-11-00-810-815-A	Loss of the HF 1 Transmission
TSM TASK 23-11-00-810-816-A	Loss of the HF 1 Reception
AMM 23-11-00-710-001	Operational Test of the HF System
AMM 27-92-41-000-010	Removal of the Radio PTT Switch
AMM 27-92-41-400-010	Installation of the Radio PTT Switch

3. Fault Confirmation
Subtask 23-11-00-710-067-A

A. Test
(1) Do the operational test of the HF system AMM 23-11-00-710-001.

4. Fault Isolation
Subtask 23-11-00-810-079-A

A. If the transmission function is not possible during the operational test of the HF 1 system:

(1) If the reception function is not possible during the operational test of the HF 1 system:

(a) If the fault continues and if the Captain does the report of the event:

Replace on the Captain's side stick the SW-RAD PTT, CAPT [11RN] , AMM 27-92-41-000-010 AMM 27-92-41-400-010.

(b) If the fault continues and if the First Officer does the report of the event:

Replace on the First Officer's side stick the SW-RAD PTT, F/O [12RN] , AMM 27-92-41-000-010 AMM 27-92-41-400-010.

Subtask 23-11-00-710-068-A

B. Do the operational test of the HF system AMM 23-11-00-710-001.

[Rev.8 from Aug 2018] 2026.04.04 04:25:36 UTC