Service difficulty report · Frame · Boeing 737790

Difficulty date
September 30, 2021
Submitted
October 4, 2021
Operation
Air carrier
Aircraft
N557WN
Make and model
Boeing 737790
Aircraft serial
30166
Aircraft time
66,485 hours, 32,340 cycles
Part
Frame
Condition
Cracked
Stage of operation
UK
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 IN FRAME BS 747 STR 8L OUTBD ATTACH HOLE FOR AIR CONDITIONING RAIL BRACKET. CRACKS PROPAGATE FROM INBD EDGE OF HOLE UP .400 IN AND DOWN .250 IN. MARKED ENDS OF CRACKS IN RED. ; / [01] CORRECTION TO FAULT - DISCREPANCY SHOULD BE BS 867 NOT 747.; [02] REPAIRED ON TTG8Q006Q5L5; [03] VERIFIED CORRECTIVE ACTION ENTRY 2. CARD COMPLETE