Service difficulty report · Web · Boeing 7377H4

Difficulty date
June 17, 2021
Submitted
July 14, 2021
Operation
Air carrier
Aircraft
N226WN
Make and model
Boeing 7377H4
Aircraft serial
32494
Aircraft time
53,110 hours, 31,655 cycles
Part
Web
Condition
Corroded
Location
Bs 796
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

CORROSION ON WEB AT AFT CARGO BAY BS796 RBL19 WL157. ; / [01] EVALUATED CORRODED AREA ON WEB AT ACB BS796 RBL19 WL157 AND FOUND TO BE OUT OF LIMITS DUE TO CORROSION IS OVER FASTENER HOLE IAW SRM 53-60-15-1A-1 PART 4G(2) DETAIL D.; [02] VERIFIED EVALUATION OF CORRODED AREA ON WEB AT ACB BS796 RBL19 WL157 AND FOUND TO BE OUT OF LIMITS DUE TO CORROSION IS OVER FASTENER HOLE IAW SRM 53-60-15-1A-1 PART 4G(2) DETAIL D.; [03] REMOVED WEB ON ACB BS794 TO 847 RBL19 WL157 IAW SRM 51-40-02-0G-0; [04] LOCATED AND DRILLED NEW WEB P/N 146A8123-25 AT ACB BS794 TO 847 RBL19 WL157 IAW SRM 51-40-05-0G-0 AND DRAWING# 143A8123; [05] VERIFIED LOCATED AND DRILLED NEW WEB P/N 146A8123-25 AT ACB BS794 TO 847 RBL19 WL157 IAW SRM 51-40-05-0G-0 AND DRAWING# 143A8123; [06] OK TO INSTALL NEW WEB P/N 146A8123-25 AT ACB BS794 TO 847 RBL19 WL157; [07] GAVE OK TO INSTALL NEW WEB P/N 146A8123-25 AT ACB BS794 TO 847 RBL19 WL157; [08] INSTALLED NEW WEB P/N 146A8123-25 AT ACB BS794 TO 847 RBL19 WL157 IAW SRM 51-40-02-0G-0 AND DRAWING# 143A8120 REV -; [09] VERIFIED INSTALLED NEW WEB P/N 146A8123-25 AT ACB BS794 TO 847 RBL19 WL157 IAW SRM 51-40-02-0G-0 AND DRAWING# 143A8120 REV -; [10] VERIFIED ALL STEPS COMPLETE.

More about the Boeing 737-7H4