SDR ERAA097091

Service difficulty report · Circuit Board · Snias AS332L

Difficulty date
July 19, 2004
Submitted
September 7, 2004
Operation
Air carrier
Aircraft
N170EH
Make and model
Snias AS332L
Aircraft time
7,829 hours
Part
Circuit Board
Part number
6864027600
Part serial
66
Condition
Malfunctioned
Location
Mlg
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

LANDING GEAR CONTROL HAS NO CONTROL POWER, SHOWING MANUAL EXTENSION LIGHT ACTION TAKEN: UNIT INSPECTED, CAPACITOR C68 UNSERVICEABLE, HEAT DAMAGE EVIDENT ON PCB. TEMPORARY CAPACITOR FITTED IN PLACE OF C68 TO ENABLE TESTING OF UNIT. UNIT TESTED, RELAY K7 AND INTEGRATED CIRCUIT MN22 RENEWED, DRY JOINT LOCATED ON TRACK SIDE OF RESISTOR R119, DRY JOINT REMOVED AND R119 CLEANED AND RESOLDERED. HEAT DAMAGE AND FLUX CLEANED FROM BOARD AS BEST AS POSSIBLE. CAPACITOR C68 RENEWED. UNIT TESTED, SEVERAL TIMES, AFTER BEING SUBJECTED TO HEAT SOAK AND COLD SOAK. UNIT PASSED TEST SATISFACTORILY.