Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
May 8, 2024
Submitted
May 30, 2024
Operation
Air carrier
Aircraft
N470WN
Make and model
Boeing 7377H4
Aircraft serial
33860
Aircraft time
66,313 hours, 39,674 cycles
Part
Stringer
Part number
UNKNOWN
Condition
Cracked
Location
Bs 727 S18al
Stage of operation
IN
How discovered
9
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 FOUND IN OPEN HOLE LOC ON BS 727 INNER CHORD AT STRINGER 18A LEFT SIDE; CRACK DIRECTION IS: 2 O CLOCK( VIEW LOOKING INSIDE TO OUTSIDE) 2024-270318<[01] ON STEP 2. TOOL USED: ET INSTRUMENT. P/N: NORTEC 600D. S/N: 210136503. DUE DATE: 23-MAY-24.;[02] TOOLS USED: TEMPERATURA CONTROLLER P/N: P3015GOES00000; S/N: 142811020; DUE DATE: 23-JAN-25; TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811019; DUE DATE: 23-JAN-25.;[03] CORRECTED STEP 2. TOOLS USED: TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811020; DUE DATE: 23-JAN-25; TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811019; DUE DATE: 23-JAN-25.;[04] TOOL USED DIGITAL CALIPER P/N: 500-193-30 S/N: 0000291 DUE DATE: 01-NOV-24.;[05] REPAIRED INNER CHORD BSTA 727 AND AT S-18A LHS IAW EA# 24-153-01268-WIP1; 24-153-01268-WIP2; 24-153-01268-WIP3; 24-153-01268-WIP4 AND EA#24-153-01268; SEE INDIVIDUAL SIGNOFF BELOW.;[06] REPAIRED INNER CHORD BSTA 727 AND AT S-18A LHS IAW EA# 24-153-01268-WIP1; 24-153-01268-WIP2; 24-153-01268-WIP3; 24-153-01268-WIP4 AND EA#24-153-01268; SEE INDIVIDUAL SIGNOFF BELOW. COMPLETED RII

More about the Boeing 737-7H4