Service difficulty report · Rib · Boeing 7377H4

Difficulty date
February 15, 2021
Submitted
March 22, 2021
Operation
Air carrier
Aircraft
N937WN
Make and model
Boeing 7377H4
Aircraft serial
36644
Aircraft time
39,004 hours, 23,596 cycles
Part
Rib
Condition
Cracked
Location
Horizontal Stab
Stage of operation
IN
How discovered
V
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 AND 9 INCH FROM REAR SPAR LT HORIZONTAL STAB / REPAIRED INSPAR RIB LOCATED STAB STA 120.80 AND 9 INCH FROM REAR SPAR LT HORIZONTAL STAB DUE TO CRACK NO FOUND ALLOWABLE DAMAGE ON SRM REPAIRED IAW B737-700 SRM 51-40-02 SRM 55-10-09-2R-5 PARAGRAPH 4 MATERIAL USED KIT T-SECTION PN 55100003-01 BATCH 2020002208 PO 000

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