Service difficulty report · Rib · Boeing 7377H4

Difficulty date
April 15, 2021
Submitted
May 24, 2021
Operation
Air carrier
Aircraft
N939WN
Make and model
Boeing 7377H4
Aircraft serial
36646
Aircraft time
39,769 hours, 23,903 cycles
Part
Rib
Condition
Cracked
Location
Horizontal Stab
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 INSPAR RIB LOCATED STAB STA 92.70 AND 18 INCH APPROX FROM REAR SPAR AT RT HORIZONTAL STABILIZER / REPAIRED INSPAR RIB LOCATED STAB STA 92.70 AND 18' APPROX FROM REAR SPAR AT RT HORIZONTAL STABILIZER IAW SRM B737-700 55-10-09-2R-4 REPAIR 4 REPAIRED DUE TO NOT CRACK PERMITTED ON INSPAR RIB IAW SRM B737-700 55-10-09-1A-1 MATERIAL USED. KIT T-SECTION PN 55100003-01 BATH #SW2021000555

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