SDR 9903131162

Service difficulty report · Dnlock Sensor · Doug DC1040

Difficulty date: August 6, 1999
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N162US
Make and model: Doug DC1040
Aircraft serial: 46771
System (JASC): 3260 · Landing Gear Position and Warning
Part: Dnlock Sensor
Condition: Failed
Location: Rt Mlg
Stage of operation: DE
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 DESCENT INTO SFO, UPON GEAR EXTENSION, GOT RMG UNSAFE INDICATION. RECYCLED GEAR AND STILL INDICATED UNSAFE. VISUAL CHECK OF GEAR SHOWED DOWN. DECLARED EMERGENCY AND LANDED WITHOUT INCIDENT. REPLACED GEAR DOWNLOCK SENSOR. OPERATION CHECKS GOOD.

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