Service difficulty report · Door Frame · Boeing 747412

Difficulty date
August 25, 2024
Submitted
September 8, 2024
Operation
Air carrier
Aircraft
N756CA
Make and model
Boeing 747412
Aircraft serial
26547
Aircraft time
94,876 hours, 15,420 cycles
Engine
Pwa PW4056
Part
Door Frame
Part number
65B018494749
Condition
Out Of Limits
Location
Zone 100
Part time
94,876 hours, 15,420 cycles
Stage of operation
IN
How discovered
V
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

"REF HAECO XMN (TX9Y778Y) NRC#:KUL9555 - AN EXISTING OVERSIZED HOLE WAS FOUND ON FRAME STRUCTURE AT STA 2231, STR-25L DURING SB 747-53A2450 REV. 08 INSPECTION. THE DIAMETER (0.309"") IS GREATER THAN SB 747-53A2450 REV. 08 ALLOWED (MAX 0.2817"")."