SDR 03FDEA01881

Service difficulty report · Downlock Sensor · Boeing 727200

Difficulty date: November 5, 2003
Submitted: November 6, 2003
Operation: Air carrier
Aircraft: N484FE
Make and model: Boeing 727200
Aircraft serial: 21466
Aircraft time: 38,424 hours, 25,615 cycles
Engine: Pwa JT8D9
System (JASC): 3260 · Landing Gear Position and Warning
Part: Downlock Sensor
Condition: Dirty
Location: Nlg
Stage of operation: AP
How discovered: O
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

ON APPROACH, WHEN LANDING GEAR WAS SELECTED DOWN, THE NOSE GEAR, LEFT GEAR AND RIGHT GEAR ALL INDICATED (GREEN) DOWN AND LOCKED, AND THE RIGHT GEAR ALSO INDICATED (RED) GEAR UNSAFE. RECYCLED THE GEAR TO UP THEN DOWN, AND INDICATION WAS NORMAL. T/S DOWNLOCK SENSOR. PER 727 M/M 32-61-091-4. ALL INDICATIONS NORMAL. CLEANED SENSOR AND TARGET. LUBED UP LOCK PER 727 M/M 12-21-001-2.

More about the Boeing 727-200