Service difficulty report · Indicator · Boeing 7374B7

Difficulty date
July 19, 2001
Submitted
August 10, 2001
Operation
Air carrier
Aircraft
N439US
Make and model
Boeing 7374B7
Aircraft serial
24781
Part
Indicator
Part number
2061141
Condition
Failed
Location
Flight Compt
Part time
42,101 hours
Stage of operation
DE
Nature of condition
F
Precautionary procedure
O

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

What was found

CLT - FLT 1528 - IN PREPARATION FOR LANDING AT CLT, FROM MIA, THE TRAILING EDGE FLAPS FAILED TO EXTEND WHEN SELECTED. THE LEADING EDGE DEVICES DID DEPLOY TO FULL EXTEND. THE FLAP POSITION INDICATOR SHOWED A SMALL SPLIT AT ONE UNIT AND THE TRAILING EDGE CIRCUIT BREAKER WAS FOUND TRIPPED. C REW ACCOMPLISHED QUICK REF HANDBOOK PROCEDURES, DECLARED AN EMERGENCY AND DETERMINED IT WAS SAFE TO LAND IN FLAP CONFIGURATION. FLIGHT LANDED WITHOUT INCIDENT AND TAXIED TO THE GATE. MAINTENANCE INSPECTED AND OPERATED TRAILING EDGE FLAPS IN NORMAL AND ALTERNATE MODES. PERFORMED OPERATIONAL TEST OF ASYMMETRY SYSTEM AND FOUND THE FLAP POSITION INDICATOR STUCK ON ONE UNIT REGARDLESS OF FLAP POSITION. REPLACED INDICATOR PER

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