Service difficulty report · Angle · Boeing 7377H4

Difficulty date
January 31, 2022
Submitted
February 4, 2022
Operation
Air carrier
Aircraft
N486WN
Make and model
Boeing 7377H4
Aircraft serial
33852
Aircraft time
58,704 hours, 34,909 cycles
Part
Angle
Condition
Cracked
Location
Ecs Bay
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CRACK NOTED AT FASTENER BS663, RBL 08. ECS BAY AFT BULKHEAD UPPER ANGLE. CUT OUT AND REMOVED DAMAGED SECTION OF BULKHEAD ANGLE AT BS 663, RBL 8 IAW SRM 57-10-10-2R-5, REPAIR 5. PERFORMED DVI OF REPAIR AREA AND UNDERLYING STRUCTURE IAW SRM 57-10-10-2R-5, REPAIR 5. NO DEFECTS NOTED. ACCOMPLISHED HFEC IAW NDT PART 6 51-00-00 PROCEDURE 23, & 16. NO DEFECTS NOTED. FABRICATED, LOCATED AND DRILLED REPAIR FILLER AND DOUBLER IAW 57-10-10-2R-5 REPAIR 5. TREATED AND PRIMED REPAIR PARTS I/A/W B737 SRM 57-10-10-2R-5 REPAIR 5.;[11] VERIFIED STEP 10. INSTALLED REPAIR PARTS AND SEALED FASTENERS COMMON TO THE INSIDE OF THE FUEL TANK IAW SRM 57-10-10-2R-5.

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