Service difficulty report · None · Boeing 737

Difficulty date
October 6, 2021
Submitted
April 29, 2022
Operation
Air carrier
Aircraft
N450WN
Make and model
Boeing 737
Aircraft serial
32470
Aircraft time
58,641 hours, 34,716 cycles
Part
None
Condition
Cracked
Stage of operation
UK
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

SUPPLEMENTAL INFORMATION: UPON COMPLETION OF HFEC INSPECTION; FOUND 1 INCH CRACK AT BS 666 RBL 40 WL 203 COMMON TO THE HORIZONTAL PRESSURE DECK / PERFORMED INSURANCE CUTDVIFABRICATED REPAIR PARTS DOUBLER(-1) FROM MATERIAL 2024 T3 CLAD 0.080' LOT.#1467098-1WEB (-3) FROM MAT 2024 T3 CLAD 0.063' LOT#1465400-1 STIFFENER (-2) 7EA FROM MAT. BAC1505-100052 7075 T6511 LOT#1465396-1 LOCATED DRILLEDAPPLIED CHEMICAL CONVERSION COATING AND PROTECTIVE TREATMENT IAW SRM 53-40-51-2R-2 PAR.4D(4)-4K. INSTALLED AND FILLET SEALED PARTS REMOVED FOR ACCESS TO REPAIR AREA 3 (EA) BRACKETS AND 1 (EA) SEAL IAW SRM 53-40-51-2R-2, SOPM 20-50-01 AND BOEING DWG 144A7700