Service difficulty report · Slat · Boeing 75721B

Difficulty date
February 9, 2012
Submitted
March 2, 2012
Operation
Air carrier
Aircraft
N528UA
Make and model
Boeing 75721B
Aircraft serial
25018
Aircraft time
68,901 hours, 25,585 cycles
Engine
Pwa PW2037
Part
Slat
Part number
114N3002125A
Part serial
42
Condition
Dented
Location
Nr 5
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

NR 5 LEADING EDGE SLAT IS DENTED FWD OF THE NOSE BEAM LOCATION. DENT MEASURES 4" X 4" WITH A DEPTH OF .1875". DENT IS OUT OF LIMITS PER 757 SRM WITH MINOR AXIS BEING 4" & DEPTH AT .1875 A-Y = 22.6. REMOVED NR 5 L/E SLAT PER MM. INSTALLED NR 5 SLAT. WILL NEED TO CONTINUE FROM "B " TO END. FLAPS HAVE BEEN LOWERED TO THE TWENTY UNIT POSITION. SLATS HAVE BEEN MANUALLY EXTENDED PAST PARTIAL EXTEND MANUALLY. MANUALLY RETRACT TO REFERENCED TORQUE TUBE POSITION BEFORE FLAP RETRACTION.

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