SDR USAABB07007

Service difficulty report · Valve · Boeing 7572B7

Difficulty date: January 14, 2007
Submitted: January 16, 2007
Operation: Air carrier
Aircraft: N933UW
Make and model: Boeing 7572B7
Aircraft serial: 27199
Aircraft time: 45,418 hours, 18,508 cycles
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Valve
Part number: 2670296
Part serial: 867
Condition: Failed
Location: Mlg
Part time: 48,725 hours, 22,462 cycles
Stage of operation: AP
How discovered: O
Nature of condition: J
Precautionary procedure: L

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

What was found

FLIGHT 704, LAS-CLT: WHEN GEAR WAS EXTENDED ON APPROACH, NOSE GEAR GREENLIGHT DID NOT ILLUMINATE AND AMBER -DOORS- AND -GEAR- LIGHTS REMAINED ON. ABORTED APPROACH, RECYCLED GEAR, RECEIVED THREE GREEN LIGHTS. LANDED WITH NO FURTHER DIFFICULTIES. MAINTENANCE REPLACED THE NOSE LANDING GEAR, GEAR-OPERATED SEQUENCE VALVE.

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