Service difficulty report · Frame · Boeing 7377H4

Difficulty date
July 21, 2022
Submitted
August 22, 2022
Operation
Air carrier
Aircraft
N490WN
Make and model
Boeing 7377H4
Aircraft serial
32476
Aircraft time
59,880 hours, 35,571 cycles
Part
Frame
Condition
Cracked
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

BS 312 FRAME IS CRACKED AT STRINGER 5L / [01] REMOVED DAMAGE FROM FRAME BS 312 STR 5L; WL 283 IAW SRM 51-10-02-0G-0;[02] REMOVED DAMAGE FROM FRAME BS 312 STR 5L; WL 283 IAW SRM 53-10-07-2R-1 STEP 4C;[03] INSPECTED AND VERIFIED CORRECTIVE ACTIONS 1 AND 2. HFEC INSPECTED TRIMMED EDGE OF DAMAGE CUTOUT PER 737NDT PART 6 51-00-00 PROCEDURE 23. NO CRACKS FOUND. TOOL N600 ATS1465 DUE 08/2023.;[04] ACCOMPLISHED PERMANENT REPAIR ON BS312 FRAME UPPER CHORD LBL33 S-5L AND S-6L REF. EA M-22-153-01244 TTG8Q00DVQFJ;[05] VERIFIED CORRECTIVE ACTION #4. VERIFIED MEASUREMENT TABLE.

More about the Boeing 737-7H4