Service difficulty report · Tire · Boeing 7474KZF

Difficulty date
June 16, 2024
Submitted
June 20, 2024
Operation
Air carrier
Aircraft
N406KZ
Make and model
Boeing 7474KZF
Aircraft serial
36133
Aircraft time
56,854 hours, 10,740 cycles
System (JASC)
3244 · Tire
Part
Tire
Part number
314792
Part serial
A4031A4031
Condition
Failed
Location
Mlg
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

TIRE FAILURE ON TAKE OFF. LOSS OF HYD 1 SYS. HYD QTY LOW 1 & HYD PRESS SYS 1 AFTER LEVEL OFF FL290. ON LANDING, HYD SYS 2 & 4 FAIL HYD QTY ON 2 & 4 WENT TO ZERO. REF ITEM M12 & M13, 9 & 10 WHEEL ASSY REPLACED. IAW AMM 29-11-00 REV 110 REF WO 3415330 / N406KZ 00081 RH BLG WW 3 HYD LINE REPLACED & WO 3415343 / N406KZ 00083 RH WLG WW 2 EA HYD LINE REPLACED. LEAK CHECK GOOD, NO MSG NOTED IAW AMM 20-51-01 REV 110. NR 9 MWA R/R IAW AMM 32-45-01 REV 110. OPS CHK GOOD. NR 10 MWA R/R IAW AMM 32-45-01 REV 110. OPS CHK GOOD. R/R RH BLD HYD SUPPORT SWIVEL BRACKET PER AMM 32-13-01 & IPC 32-53-11-06. HYD LEAK CHECK GOOD IAW AMM 29-00-99 REV 110. C/W AP 28224 (RH BODY GEAR WHEEL WELL DAMAGED INSPECTION & BRAKE TEST)

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