SDR HEEA084657

Service difficulty report · Interphone · Bolkms BO105S

Difficulty date
February 12, 2003
Submitted
February 21, 2003
Operation
Air carrier
Aircraft
N5031U
Make and model
Bolkms BO105S
Aircraft serial
S678
Aircraft time
7,792 hours
Part
Interphone
Part number
A3016W
Part serial
32687
Condition
Noisy
Location
Comms
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

INTERPHONE BOX HAS FEEDBACK NOISE ON CHANNEL 2. FOUND SWITCHES S2 THROUGH S11, VOLUME CONTROL R72, VOLUME AND SELECTOR KNOBS BAD. ALSO FOUND CORROSION ON VOLUME AND SELECTOR KNOBS. CLEANED AND REPLACED. REPAIRED. BENCH CHECK GOOD.