Service difficulty report · Rib · Boeing 7377H4

Difficulty date
November 24, 2020
Submitted
December 30, 2020
Operation
Air carrier
Aircraft
N933WN
Make and model
Boeing 7377H4
Aircraft serial
36640
Aircraft time
38,893 hours, 23,539 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 120.30 AT 19 INCHES FROM FRONT SPAR AT RT HORIZONTAL STABILIZER. REPAIRED INSPAR RIB LOCATED STAB STA 120.30 AT 19 INCHES FROM SPAR AT RT HORIZONTAL STABILIZER, IAW B737-700 SRM 55-10-09-2R-4 PARAGRAPH 4 (REPAIR 4).

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