Service difficulty report · Tire · Boeing 74746NF

Difficulty date
November 11, 2025
Submitted
November 18, 2025
Operation
Air carrier
Aircraft
N450PA
Make and model
Boeing 74746NF
Aircraft serial
30808
Aircraft time
102,134 hours, 17,135 cycles
System (JASC)
3244 · Tire
Part
Tire
Part number
314792
Part serial
66706670
Condition
Failed
Location
Zone 700
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

#8 MLG BLEW OUT TOWER REPORTED SMOKE & TIRE DEBRIS ON RUNWAY. R & R NR 8 MWA IAW AMM 32-45-01 & IPC 32-45-03-02. C/W BLOWN TIRE CHAP 5 INSP IAW AMM 05-51-25. R & R NR 7 MWA IAW AMM 32-45-01. R & R NLG STEERING CYLINDER IAW AMM 32-53-11. OPS CHKD NORMAL. NO LEAK NOTED. CUTOUT DAMAGED AREA AT BS 148 WTB FRAME LWR FLANGE IAW SRM 51-10-01. PERFORMED NDT AT WT OUT & OPEN BOLT HOLES PER NDTM PT 6 51-00-00. NO FURTHER DEFECTS NOTED. ACCOMPLISHED REPAIR AT LT WTB FAIRING BS 1580 LT IAW SRM 53-00-71 & 51-40-02. PERFORMED NDT AROUND WT OUT & OPEN BOLT HOLES IAW NDTM PT6 51-00-00. NO FURTHER DEFECTS NOTED. R & R NR 8 ANTISKID CONTROL VALVE IAW AMM 32-42-02. OPS CHKD OK. R & R NR 7 BRAKE ASSY IAW AMM 32-41-15. OPS CHKD OK. R & R CONN DV69 IAW WDM 32-42-15. OPS CHKD OK. R & R BSCU IAW AMM 32-42-01. OPS CHKD OK IAW AMM 32-42-001. R & R BRAKE ASSY IAW AMM 32-41-15. OPS CHKD OK. R & R NR 8 MLG BRAKE TEMP SENSOR IAW AMM 32-46-01/401. OPS CHKD OK. REMOVED LT AFT WTB PANEL 193BL IAW AMM 53-51-01. REPAIRED PANEL IAW SRM 51-70-07, 53-00-70 & AMM 51-42-11. REMOVED LT AFT WTB FAIRING PANEL 198CL IAW AMM 53-51-01. REPAIR ACCOMPLISHED IAW SRM 51-70-07 & AMM 51-42-11. REMOVED LT AFT FUSELAGE WTB FAIRING PANEL 193DL & REPAIRED IAW SRM 51-70-07, 53-00-70 & AMM 51-24-11. NO FURTHER DEFECTS NOTED. ORIGINAL SUBMISSION DATE: 11/12/2025

More about the Boeing 747-46NF