Service difficulty report · Angle · Boeing 7377H4

Difficulty date
February 13, 2023
Submitted
March 10, 2023
Operation
Air carrier
Aircraft
N277WN
Make and model
Boeing 7377H4
Aircraft serial
32531
Aircraft time
51,901 hours, 31,206 cycles
Part
Angle
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

CRACK FOUND AT FASTENER HOLE LOCATION RBL 54.21 FORWARD ANGLE COMMON TO RT VAPOR BARRIER LOWER WEB STA 663; CRACK APPROX DEPTH 0.020'< . CRACK FOUND AT FASTENER HOLE LOCATION RBL 54.21 FORWARD ANGLE COMMON TO RT VAPOR BARRIER LOWER WEB STA 663 CRACK APPROX DEPTH 0.020'< .<[01] PERFORMED HFEC ROTO AT FASTENER HOLE LOCATION RBL 54.21 FORWARD ANGLE COMMON TO RT VAPOR BARRIER LOWER WEB STA 663; IAW NDTM PART 6; 51-00-00 PROCD. 16. CRACK CONFIRMED.<BR>[NORTEC 600 ; B/C 166317 ; CALIB.DUE- 10/23].;[;[11] PARTIALLY LOCATED AND DRILL NEW FORMED ANGLE UPPER FLANGE (FINAL SIZE) REF SRM 51-40-05-0G-0 AND DWG # 111A1322-6.;[12] TRIMMED; LOCATED AND DRILLED NEW FORMED ANGLE (FINAL SIZE) IAW SRM 51-40-05-0G-0 AND DWG #111A1322-6;

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