Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
March 4, 2020
Submitted
April 6, 2020
Operation
Air carrier
Aircraft
N918WN
Make and model
Boeing 7377H4
Aircraft serial
29843
Aircraft time
41,374 hours, 24,603 cycles
Part
Stiffener
Condition
Cracked
Location
Lt Horiz 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

L/H HORI. STAB.; STAB STA 120.4 RIB; CRACK IN RIB STIFFENER AT 3RD STIFFENER RIB FROM FRONT 1.0' UP FROM LOWER ATTACH FLANGE / TRIMMED OUT DAMAGED AREA OF STAB RIB AT LH STAB STA 120.4 3RD STIFFENER FROM FRONT AND FABRICATED AND INSTALLED RIB STIFFENER REPAIR IAW SRM 55-10-09-2R-4. RESTORED CIC TO DISTURBED AREA IAW AMM 51-21-91-620-802

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