Service difficulty report · Bulkhead · Boeing 747212B

Difficulty date
August 25, 2005
Submitted
September 12, 2005
Operation
Air carrier
Aircraft
N526UP
Make and model
Boeing 747212B
Aircraft serial
21937
Aircraft time
86,711 hours, 16,361 cycles
Part
Bulkhead
Part number
65B100056
Condition
Corroded
Location
Rt Mlg Ww
Stage of operation
IN
How discovered
9
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

INSPECTION TYPE:C L/G - RBLG W/W STA 1480 BULKHEAD FWD FACE FOUND SURFACE CORROSION AROUND L/G RETRACT ACTUATOR UPPER MOUNT AREA. BS 1480 BULKHEAD CORRODED. TIME LIMITED REPAIR AT RBL 85 WL 156 AREA AS PER H HX RS R53-43-35364 AND UPS EO B747-5310-22826-A. BOEING RECOMMEND PERFORMING THE CPC TASK C53-125-01 MORE FREQUENTLY TO REDUCE CORROSION TO LEVEL 1. BOEING WILL PROVIDE THE STATUS IN 12 MONTHS AFTER COMPLETION OF THE DAMAGE TOLERANCE ANALYSIS.

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