Service difficulty report · None · Boeing 737890

Difficulty date
January 12, 2023
Submitted
January 31, 2023
Operation
Air carrier
Aircraft
N568AS
Make and model
Boeing 737890
Aircraft serial
35183
Aircraft time
56,102 hours, 16,754 cycles
Part
None
Part number
147A550611
Condition
Corroded
Stage of operation
IN
How discovered
V
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

MAIN CABIN STA 986 LH UPPER FLANGE CORR FROM BL0-CUSP. GROUNDED - YES. REMOVED CORROSION ON L/H UPPER FLANGE @ STA 986 ORIGINAL THICKNESS .150" REMAINING .121" REMOVED .029". FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-2R-4. REMOVED INTERCOSTAL, FITTING, SPLICE FROM STA 967 TO 1006, CORRODED T-CHODE @STA 986 -1006, BLO AND WEB PARTIALLY IAW B737-800 SRM 53-70-51. FABRICATED AND DRILLED NEW HOLES ON NEW T-CHORD FOR STA 986 PART #BAC 1505-101474, PO# 1050597.1 IAW B737-800 SRM 53-70-51. DEBURNED AND INSTALLED ALL PARTS (2EA) INTERCOSTALS REPAIR FITTING, (3) INTERCOSTALS, GALLEY FITTING, (3) WEB BRACKETS SUPPORTS, AND WEB AND T-CHORDS IAW B737-800 SRM 53-70-51-2R-4. TOOL USED # T8224K DUE DATE: 10/17/2023.