Service difficulty report · Rib · Boeing 7377H4

Difficulty date
March 31, 2021
Submitted
April 26, 2021
Operation
Air carrier
Aircraft
N221WN
Make and model
Boeing 7377H4
Aircraft serial
34259
Aircraft time
53,548 hours, 31,478 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 AT STAB STA 120.30 AT 28 INCH FROM FRONT SPAR AT RT HORIZONTAL STABILIZER / PERFORMED PERMANENT REPAIR ON INSPAR RIB LOCATED AT STAB STA 120.30 BTW 23.000 INCHES TO 29.800 INCHES FROM FRONT SPAR AT RT HORIZONTAL STABILIZER IAW B737-700 SRM 51-40-02 AND B737-700 SRM 55-10-09-2R-5 REPAIR 5 FIGURE 204 DETAIL A CRACK LENGHT IS 0.490'

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