Service difficulty report · Fitting · Boeing 747212B

Difficulty date
October 15, 2003
Submitted
October 31, 2003
Operation
Air carrier
Aircraft
N525UP
Make and model
Boeing 747212B
Aircraft serial
21939
Aircraft time
80,338 hours, 15,279 cycles
Part
Fitting
Part number
65B1447225
Part serial
109
Condition
Corroded
Location
Lt Wing
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, CORROSION REVEALED AT LT WING LANDING GEAR SUPPORT BEAM O/B END AFT FITTING FIVE INDICATIONS AT 2, 6, 7, 9, 11 O'CLOCK RESPECTIVELY WERE FOUND EXCEEDED THE 50 PERCENT ACCEPTANCE LIMIT PER NTM PT4. 57-40-03. REMOVAL OF THE FITTING FOR FURTHER INVESTIGATION ACTION IS NECESSARY. LT WLG SUPPORT BEAM O/B END FITTING REPLACED AS PER MM 57-15-01 & LT WING LANDING GEAR RETRACTION CARRIED OUT AS PER MM 32-32-00.

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