SDR TWAA9613702

Service difficulty report · Downlock Switch · Doug DC931

Difficulty date: November 10, 1996
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N979Z
Make and model: Doug DC931
Aircraft serial: 47343
System (JASC): 3260 · Landing Gear Position and Warning
Part: Downlock Switch
Part number: H146
Condition: Malfunctioned
Location: Rt Mlg
Stage of operation: AP
Nature of condition: P
Precautionary procedure: O

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, RIGHT MAIN LANDING GEAR DID NOT INDICATE DOWN AND LOCKED. CYCLED LANDING GEAR. FOUND RIGHT MAIN LANDING GEAR DOWNLOCK SWITCH, MFG PN H14-6, MALFUNCTIONING. REPLACED RIGHT MAIN LANDING GEAR DOWNLOCK SWITCH. LANDING GEAR INDICATION SYSTEM OPERATIONS CHECKED NORMAL. CHECK C - 10-14-96 - STL. (X)

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