Service difficulty report · Stringer · Boeing 73776Q

Difficulty date
April 14, 2023
Submitted
May 9, 2023
Operation
Air carrier
Aircraft
N551WN
Make and model
Boeing 73776Q
Aircraft serial
30280
Aircraft time
66,624 hours, 41,198 cycles
Part
Stringer
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

CRACKED STRINGER AT AREA AFT OF FWD CARGO BAY BS535 S-27R WL150. MARKED<[01] CRACKED STRINGER AT AREA AFT OF FWD CARGO BAY BS535 S-267R WL150 FOUND TO BE OUT OF LIMITS DUE TO CRACKS ARE NOT ALLOWED IAW SRM 53-00-03-1A-1 .<BR>CUT AND REMOVED THE DAMAGED PART OF STR 27R BETWEEN BS 500D +11 AND BS 540 IAW SRM 53-00-03-2R-1 REPAIR 1;[02] CRACKED STRINGER AT AREA AFT OF FWD CARGO BAY BS535 S-27R WL150 FOUND TO BE OUT OF LIMITS DUE TO CRACKS ARE NOT ALLOWED IAW SRM 53-00-03-1A-1 .<BR>CUT AND REMOVED THE DAMAGED PART OF STR 27R BETWEEN BS 500D +11 AND BS 540 IAW SRM 53-00-03-2R-1 REPAIR 1;[08] FABRICATED -7 STRINGER SECTION 27R FROM MATERIA 7075T6#0.056' LOT# 1525203-1; -1 HAT SECTION CHANNEL FROM MATERIAL 7075T6#0.063' LOT# 1525260-1 LOCATED AND DRILLED REPAIR PARTS AND APPLIED CHEMICAL CONVERSION COATING IAW SRM 53-00-03-2R-1 REPAIR 1; OK TO PRIMER[12] INSTALLED REPAIR PARTS; STRINGER SECTION 27R BS 500D+10 TO BS 540 AND HAT SECTION CHANNEL AT BS 500D+10 IAW SRM 53-00-03-2R-1 REPAIR 1;

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