SDR HEEA086527

Service difficulty report · Interphone · Skrsky S76A

Difficulty date
May 21, 2003
Submitted
May 27, 2003
Operation
Air carrier
Aircraft
N911MJ
Make and model
Skrsky S76A
Aircraft serial
760231
Aircraft time
11,698 hours
Part
Interphone
Part number
A3016W
Part serial
8311156
Condition
Weak
Location
Cockpit
Stage of operation
NR
How discovered
O
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

CAUSING STATIC IN PILOTS HEADSET. FOUND UNIT TO HAVE VERY WEAK AND NOISY TRANSMIT AUDIO. CLEANED S1 SWITCH. REPLACED C30 AND C31 CAPACITORS. REPLACED Q8 AND Q10 TRANSISTORS. STRAIGHTENED BENT TERMINAL ON S1 TRANSMIT SELECTOR SWITCH AND RESOLDERED WIRE TO TERMINAL. REPAIRED. BENCH CHECK GOOD.