Service difficulty report · Coupler · Boeing 75733N

Difficulty date
December 4, 2007
Submitted
December 17, 2007
Operation
Air carrier
Aircraft
N560TZ
Make and model
Boeing 75733N
Aircraft serial
33525
Engine
Rroyce RB211535E4
Part
Coupler
Part number
9640453011
Part serial
FK51601166
Condition
Unserviceable
Location
Hf Comm
Stage of operation
CR
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

LT HF RADIO WILL NOT AUTO-TUNE UNLESS MIC IS CONTINUOUSLY HELD IN. PERFORMED HF COMMUNICATION SYS BITE PROCEDURE IAW FIM 23-11-00. FOUND COUPLER FAIL LIGHT. REMOVED AND REPLACED LT HF COUPLER IAW AMM 23-11-01-4. OPS CHECK OK. (K)

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