SDR UPS202938

Service difficulty report · Dn Lock Switch · Boeing 72727C

Difficulty date: April 11, 1995
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N914UP
Make and model: Boeing 72727C
Aircraft serial: 19246
System (JASC): 3260 · Landing Gear Position and Warning
Part: Dn Lock Switch
Condition: Dirty
Location: Nlg
Stage of operation: AP
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

PILOT REPORTED, THE NOSE GEAR UNSAFE LIGHT REMAINED ON WHEN THE LANDING GEAR WAS LOWERED, TWO RECYCLES, BOTH PRODUCED SAFE INDICATIONS. INSPECTED NLG, NO DEFECTS FOUND. CLEANED AND RESECURED NLG LOCK SWITCH AND SWUNG GEAR SEVERAL TIMES PER MM 32-61-21. SYS OPS CK NORMAL.

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