Service difficulty report · Landing Gear · Boeing 747446

Difficulty date
April 12, 2011
Submitted
April 12, 2011
Operation
Air carrier
Aircraft
N458MC
Make and model
Boeing 747446
Aircraft serial
26356
Aircraft time
56,635 hours, 12,173 cycles
Part
Landing Gear
Condition
Misinstalled
Stage of operation
IN
How discovered
V
Nature of condition
W
Precautionary procedure
K

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

What was found

DURING D-CHECK AT SIN, LANDING GEARS WERE REPLACED; UPON OPS CHECKS, MX FOUND THE LT AMP; RT BODY GEARS- UPPER JURY STRUT PLATES MOUNTING BOLTS BEING INSTALLED TOO LONG, RESULTING IN RIDING CONDITION AGAINST THE DOWNLOCK SENSORS (REF FIGURE 1). (DISPOSITION WAS MADE TO PERFORM A TIME LIMITED REPAIR AS DESCRIBED IN PART 1 WORK INSTRUCTIONS BY TRIMMING OFF (USING A FILE) THE END OF THE BOLTS (4 EA) TO RELIEVE THE RIDING CONDITION.PART 2 OF THIS EO REPEAT INSPECTIONS WILL BE SCHEDULED AT EVERY 1,000 FH (FLIGHT HOURS) AND PERMANENT REPAIR IAW PART 3 AT THE NEXT C CHECK AFTER PART 1, BY R & R THE BOLTS IAW SRM 51-40-02.)