Service difficulty report · Rib · Boeing 7377H4

Difficulty date
January 5, 2021
Submitted
January 28, 2021
Operation
Air carrier
Aircraft
N406WN
Make and model
Boeing 7377H4
Aircraft serial
27894
Aircraft time
66,898 hours, 39,718 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 LEADING EDGE RIB 1 LE STA 78.29 RT HORIZONTAL STAB / REPLACED LEADING EDGE RIB 1 LE STA 78.29 RT HORIZONTAL STAB DUE TO NOT FOUND ALLOWABLE DAMAGE PART NUMBER USED 186A1352-2 PO 2021- 101345 IAW B737-700 51-10-02 ITEM 9 AND SRM 51-40-02 AND DWG 186A1001 REV B

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