Service difficulty report · Attach Angle · Boeing 7377H4

Difficulty date
May 18, 2021
Submitted
May 24, 2021
Operation
Air carrier
Aircraft
N207WN
Make and model
Boeing 7377H4
Aircraft serial
34012
Aircraft time
52,378 hours, 31,227 cycles
Part
Attach Angle
Condition
Cracked
Location
Bs 663
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

CRACKED UPPER ATTACH ANGLE OF BS 663 LOWER COMPOSITE BULKHEAD AT RBL 8, WL 164. REMOVED FASTENERS ON REPAIR AREA IAW SRM 51-40-02-OG-0 & 57 10-10-2R-5, REPAIR 5, STEP 4 A & PERFORMED CUT OUT ON REPAIR AREA IAW SRM 57-10-10-2R-5, REPAIR 5, STEP 4 A, FIG 202, REPAIR 5, SHEET 4. HFEC ROTARY INSPECTED OPEN HOLES IN REPAIR AREA IAW NDT PART 6 51-00-00, PROCEDURE 16. NO CRACKS FOUND. REWORKED AREA & UNDERLYING STRUCTURE IAW SRM 57-10-10-2R-5, REPAIR 5, STEP 4D. FABRICATED A -1 REPLACEMENT ANGLE, & -2 SPLICE ANGLE.

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