Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
July 7, 2023
Submitted
August 29, 2023
Operation
Air carrier
Aircraft
N297WN
Make and model
Boeing 7377H4
Aircraft serial
32542
Aircraft time
51,861 hours, 31,224 cycles
Part
Stiffener
Part number
UNKNOWN
Condition
Cracked
Location
Zn 300 Stabilize
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

#4 STIFFENER IS CRACKED ON RH HORIZ STAB #4 RIB STAB STA 120.3.<[01] CUT AND REMOVED DAMAGED AND AREA #4STIFFENER ON RH HORIZ STAB #4 RIB STAB SAT 120.3 PER SRM 55-10-09-2R-410] FABRICATED REPAIR PARTS: (1) T-SECTION FROM 60-5872#7075T76511; LOT# 1509308-1; (2) ANGLE FROM BAC1490-2793#7075T62; LOT# 1491233-1; (3) FILLER FROM 7075 T6 0.050' CLAD; LOT# 1505777-1; (4) SHIM FROM 7075 T6 0.020' CLAD; LOT# 1381332-1; PER SRM 55-10-09-2R-5<BR><BR>OK TO ALODINE AND PRIMER.;15] INSTALLED REPAIR PARTS ON R/H HORIZ STAB #4 RIB STAB STA 120.3; PER SRM 55-10-09-2R-5; STEP 4.N - R.

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