Service difficulty report · Frame · Boeing 7377H4

Difficulty date
August 25, 2021
Submitted
September 15, 2021
Operation
Air carrier
Aircraft
N447WN
Make and model
Boeing 7377H4
Aircraft serial
33720
Aircraft time
58,733 hours, 34,620 cycles
Part
Frame
Condition
Damaged
Location
Bs 907
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

FOUND ELONGATED HOLE ON BS 907 FRAME COMMON TO R/H MOPSILL VERTICAL FLANGE APPROX WL 210; RBL 60 ; / [01] CLEANED DAMAGED HOLE FINAL SIZE .263 AT FRAME BS 907 WL 210 RBL 60 PER SRM 51-40-05; [02] VERIFIED HOLE FINAL SIZE .263 PER SRM 51-40-05; [03] REUQEST NDI OPEN HOLE INSPECTIEON FREE CRACK CONDITION PER SRM 51-10-02; [04] ACCOMPLISHED HFEC OPEN HOLE INSPECTION TO FRAME IAW B737 NDTM P6; 51-00-00 PROC 16 NO CRACKS NOTED. TOOL ID IS000450; N500; TOOL ID ATS1411; MINIMITE.; [05] SUBMITTED TO ENGINEERING FOR REPAIR; [06] RECEIVED 21-153-02510-WIP1 FOR REPAIR; [07] CORRECTED MEASUREMENTS; [08] REFER TO EA 21-153-02510 SUMMARY REQUIREMENT; BARCODE: TTG8Q006ENMV; [09] REPAIRED PER EA 21-153-02510

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