Service difficulty report · Frame · Boeing 7377H4

Difficulty date
January 29, 2025
Submitted
March 5, 2025
Operation
Air carrier
Aircraft
N278WN
Make and model
Boeing 7377H4
Aircraft serial
36441
Aircraft time
58,438 hours, 35,196 cycles
Part
Frame
Condition
Cracked
Location
Zone 100
Stage of operation
IN
How discovered
E
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

CRACK INDICATION IN LOWER FASTENER HOLE LOCATED AT BS 727 FRAME INNER CHORD AT S-18A RIGHT SIDE.CRACK DIRECTION 9 O CLOCK.AFT CARGO COMPARTMENT 2025-94144<[01] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 240525411; DUE DATE: 13-NOV-25.;[02] STEP 4. TOOL USED: EDDY CURRENT EQUIPMENT; PN: NORTEC 600D; SN: 200048001; DUE DATE: 28-MAY-25;[03] 'REFER TO FAULT TTG8Q00YED9N WHERE EA 25-153-00424 WAS ADDED AS A SUBTASK.';[04] CORRECTED STEP 3<BR>REPAIRED LOWER FASTENER HOLE LOCATED AT BS 727 FRAME INNER CHORD AT S-18A RIGHT SIDE.CRACK DIRECTION 9 O CLOCK.AFT CARGO COMPARTMENT IAW EA 25-153-00424;[05] CORRECTED STEP 3 AND 4<BR>'REFER TO FAULT TTG8Q00YED9N WHERE EA 25-153-00424 WAS ADDED AS A SUBTASK.';[06] REPAIRED LOWER FASTENER HOLE LOCATED AT BS 727 FRAME INNER CHORD AT S-18A RIGHT SIDE.CRACK DIRECTION 9 O CLOCK.AFT CARGO COMPARTMENT IAW EA 25-153-00424<BR>5. 'REFER TO FAULT TTG8Q00YED9N WHERE EA 25-153-00424 WAS ADDED AS A SUBTASK.'<BR>TASK RII CERTIFIED

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