SDR 9710576603

Service difficulty report · A1 Card · Boeing 747151

Difficulty date: May 30, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N603US
Make and model: Boeing 747151
Aircraft serial: 19780
System (JASC): 3260 · Landing Gear Position and Warning
Part: A1 Card
Condition: Failed
Location: E/E Compt
Stage of operation: CL
Nature of condition: N
Precautionary procedure: O

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

What was found

DURING CLIMB, THE RED LANDING GEAR LIGHT ILLUMINATED AFTER LANDING GEAR RETRACTION. RECYCLED LANDING GEAR AND THE NOSE DOWN LIGHT ILLUMINATED USING THE PRIMARY CIRCUIT BUT CHECKED NORMAL USING THE ALTERNATE CIRCUIT. AIRCRAFT CONTINUED TO HNL AND LANDED WITHOUT INCIDENT. REPLACED A-1 PRIMARY CARD IN THE POWER SUPPLY MODULE, OPERATIONAL CHECK GOOD.