SDR 95ZZZX3181

Service difficulty report · Downlock Switch · Doug DC931

Difficulty date: June 10, 1995
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N985Z
Make and model: Doug DC931
Aircraft serial: 47491
System (JASC): 3260 · Landing Gear Position and Warning
Part: Downlock Switch
Part number: H146
Condition: Failed
Location: Nlg
Stage of operation: AP
Nature of condition: P
Precautionary procedure: L

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

What was found

STL - FLT 631 - DURING APPROACH WHEN LANDING GEAR WAS EXTENDED, NLG GREEN LIGHT DID NOT ILLUMINATE. CYCLED LANDING GEAR AND SWAPPED LIGHT BULBS. ON SECOND APPROACH, GREEN LIGHT CAME ON. REPLACED NLG DOWNLOCK SWITCH, MFG H14-6. NLG INDICATION AND OPERATION CHECKED NORMAL. CHECK C - 3-1-95 - STL.

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