Service difficulty report · Support · Boeing 7377H4

Difficulty date
December 3, 2021
Submitted
January 4, 2022
Operation
Air carrier
Aircraft
N234WN
Make and model
Boeing 7377H4
Aircraft serial
32502
Aircraft time
52,359 hours, 31,270 cycles
Part
Support
Condition
Corroded
Location
Bs 500b-500c
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CORRSION FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT BS 500B+2; +10; +15; BS 500C+6; +10; +14 RBL 24 ; / [01] EVALUATED CORROSION AT ALL LOCATION; FOUND DEEPEST LOCATION TO BE AT BS 500B+2 RBL 24 WL 156. FOUND 0.015 REMOVED FROM ORIG 0.040 IN 1'X1' AREAS. FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING DIAL DEPTH GAUGE ATS 2678 S/N UNKNOWN; [02] VERIFIED EVALUATED CORROSION AT ALL LOCATION; FOUND DEEPEST LOCATION TO BE AT BS 500B+2 RBL 24 WL 156. FOUND 0.015 REMOVED FROM ORIG 0.040 IN 1'X1' AREAS. FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING DIAL DEPTH GAUGE ATS 2678 S/N UNKNOWN; [03] FABRICATED FLOOR TO SIDEWALL SUPPORT BS 500A-500D RBL 24 IAW DWG 143A7501 MATERIAL USED <BR>EXTRUSION BAC1496-444 #7075 T62 LOT 1475361-1; [04] FABRICATED FLOOR TO SIDEWALL SUPPORT BS 500A-500D RBL 24 IAW SRM 51-40-05-0G-0; SRM 51-40-02-0G-0 DWG 143A7501 AND APPLIED CHEMICAL CONVERSION COATING AND PRIMER PER SRM 51-20-01-0G-0<BR>MATERIAL USED: EXTRUSION BAC1496-444 #7075762 LOT 1475361-1; [05] VERIFIED CORRECTIVE ACTIONS 3 AND 4.; [06] VERIFIED CARD COMPLETE

More about the Boeing 737-7H4