Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
September 19, 2019
Submitted
March 21, 2022
Operation
Air carrier
Aircraft
N760SW
Make and model
Boeing 7377H4
Aircraft serial
27874
Aircraft time
68,656 hours, 40,762 cycles
Part
Stringer
Condition
Out Of Tolerance
Location
Aft Fuselage
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

WHILE ACCOMPLISHING SI#12107-53 FOUND HOLE 9L AT STR-3L OUT OF THE 0.3745-0.3755 TOLERANCE REQURED FOR STEP 29.D. EXISTING WHOLE DIAMETER 0.380. / REPAIRED FASTNER HOLE AT BS 1016; STRINGER 3L; HOLE 9L AS PER SOUTHWEST SPECIAL ITEM (SI # 12107 # 53) STEP 31 REF. FIG 15

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