SDR HEEA084734

Service difficulty report · Knob · Bell 412

Difficulty date: February 17, 2003
Submitted: February 25, 2003
Operation: Air carrier
Aircraft: N108X
Make and model: Bell 412
Aircraft serial: 33115
System (JASC): 2340 · Interphone/Passenger Announcement (PA) System
Part: Knob
Condition: Cracked
Location: Interphone Box
Component: Interphone Box
Component part number: A3016W
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

SELECTOR KNOB CRACKED AND CAN'T LISTEN TO COMM 1 IN ANY POSITION. FOUND LIGHT PANEL, SWITCH S1, VOLUME KNOB AND TRANSMIT KNOB BAD, ALSO SWITCHES S2 THROUGH S11 HARD TO SWITCH. CLEANED AND LUBED SWITCHES S2 THROUGH S11, REPLACED LIGHT PANEL, SWITCH S1, VOLUME KNOB AND TRANSMIT KNOB. REPAIRED. BENCH CHECK GOOD.

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