Service difficulty report · Rib · Boeing 7377H4

Difficulty date
October 5, 2020
Submitted
November 10, 2020
Operation
Air carrier
Aircraft
N931WN
Make and model
Boeing 7377H4
Aircraft serial
36637
Aircraft time
39,335 hours, 23,819 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 120.30 AT 27.5 INCHES OF FRONT SPART AT RT HORIZONTAL STABILIZER. REPAIRED INSPAR RIB 120.30 AT 14 INCHES FRONT SPART TO 37 INCHES FRONT SPART AT RT HORIZONTAL STABILIZER, IAW B737-700 SRM 55-10-09-2R-5. THIS REPAIR IS CATEGORY A AND NOT FURTHER MAINTENANCE OR INSPECTION ACTION IS REQUIRED. ALL STEP ARE DOCUMENTED ON NRC L181395.

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