Service difficulty report · Crease Beam · Boeing 7377H4

Difficulty date
February 27, 2023
Submitted
April 10, 2023
Operation
Air carrier
Aircraft
N438WN
Make and model
Boeing 7377H4
Aircraft serial
29833
Aircraft time
65,970 hours, 39,056 cycles
Part
Crease Beam
Condition
Cracked
Location
Zn 100 Fus Lower
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

)MAIN CABIN AT CREASE BEAM BS 639, LBL 65. CRACK INNER CHORD INSTEAD OF CREASE BEAM. REMOVED CORROSION FOUND CRACK ON CREASE BEAM AT BS 639 LBL 65 SRM 51-40-02-0G-0. VERIFIED STEP 1. REMOVED DAMAGE REPAIR ANGLE FROM CREASE BEAM STA 639 & LBL 65. PER SRM 51-40-02-0G-0. LOCATED & DRILLED NEW INNER CHORD IAW SRM-51-40-02-0G-0. VERIFIED STEP 7. RECIEVED NEW FABRICATED PART FROM PREMIERE. CORRECTION TO STEP 9, SENT NEW FARBRICATED PART TO PREMIER TO BE ANODIZED. RECIEVED NEW TREATED PART FROM PREMIERE. VERIFIED STEP 10, OK TO PRIME. PRIMED NEW FABRICATED PART IAW SRM-51-20-01. VERIFIED STEP 12, INSTALLED NEW INNER CHORD BS 639 LBL 65 IAW SRM-51-40-02. INSTALLED NEW INNER CHORD IAW SRM-51-40-02-0G-0.

More about the Boeing 737-7H4