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 UPPER FASTENER HOLE LOCATED AT BS 727 FRAME INNER CHORD AT S-18A RIGHT SIDE.CRACK DIRECTION 11 O CLOCK.AFT CARGO COMPARTMENT 2025-94143<[01] TOOL USED ON STEP 1: EDDY CURRENT EQUIPMENT P/N: NORTEC 600D; S/N:240525011; DUE DATE:13-NOV-25.[07] REPAIRED UPPER FASTENER HOLE LOCATED AT BS 727 FRAME INNER CHORD AT S-18A RIGHT SIDE.CRACK DIRECTION 11 O CLOCK.AFT CARGO COMPARTMENT IAW EA 25-153-00424 (AD - N278WN - AEM - REPAIR - FUSELAGE - WHEEL WELL BULKHEAD - AT BSTA 727 AND AT S-18A RHS - WEB & AFT LOWER FITTING - FASTENER HOLE - CRACK.)<BR>TASK CERTIFIED;[08] REPAIRED UPPER FASTENER HOLE LOCATED AT BS 727 FRAME INNER CHORD AT S-18A RIGHT SIDE.CRACK DIRECTION 11 O CLOCK.AFT CARGO COMPARTMENT IAW EA 25-153-00424 (AD - N278WN - AEM - REPAIR - FUSELAGE - WHEEL WELL BULKHEAD - AT BSTA 727 AND AT S-18A RHS - WEB & AFT LOWER FITTING - FASTENER HOLE - CRACK.)<BR>TASK RII CERTIFIED

More about the Boeing 737-7H4