Service difficulty report · Axle · Boeing 73781Q

Difficulty date
June 8, 2016
Submitted
July 26, 2016
Operation
Air carrier
Aircraft
N520AM
Make and model
Boeing 73781Q
Aircraft serial
29052
Aircraft time
50,537 hours, 18,092 cycles
Part
Axle
Part number
161A11303
Part serial
N1AL0240
Condition
Damaged
Location
Rt Mlg
Part time
50,537 hours, 18,092 cycles
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

DURING TRANSIT CHECK, IT WAS DETECTED A HIGH TEMPERATURE LOW PRESSURE AT MAIN WHEEL ASSY NUMBER 4. MAINTENANCE PERSONNEL PERFORMED THE FLAT SPOTTED TIRES CONDITIONAL INSPECTION IAW AMM 05-51-16-210-801 DETECTING PAINT ERODED IN THE TRANSDUCTOR HOUSING AND DISCOLORATION ON SHAFT CHROME AND INSPECTION PERSONNEL EVALUATED THE DAMAGE AND FOUND IT OUT OF LIMITS IAW AMM 32-11-85. AIRCRAFT WAS SENT TO THE HANGAR, THE NRC’S A0238685, A0238686 AND A0238687 WERE ISSUED TO REPAIR THE DAMAGE DETECTED AND THE MAIN WHEEL ASSY AND BRAKE ASSEMBLY NUMBERS 3 AND 4 WERE REPLACED IAW AMM 32-45-11, AMM 32-41-41, THE RIGHT MAIN LANDING GEAR AXLE WAS REPLACED IAW AMM 32-11-85, THE RIGHT OUTBOARD ANTISKID VALVE WAS REPLACED IAW AMM 32-42-31, TESTED CORRECT.

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