Service difficulty report · Support · Boeing 7377H4

Difficulty date
July 14, 2021
Submitted
August 18, 2021
Operation
Air carrier
Aircraft
N444WN
Make and model
Boeing 7377H4
Aircraft serial
29839
Aircraft time
61,121 hours, 35,983 cycles
Part
Support
Condition
Corroded
Location
Bs 500d
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

FWD CARGO COMPARTMENT AFT BULKHEAD TO FLOOR SUPPORT HAS CORROSION BS 500D RBL 4 WL 156 ; / [01] UPDATED MEASUREMENTS; [02] CORROSION ON SUPPORT WAS FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ARE GIVEN IN THE SRM; [03] UPDATED MEASUREMENTS; [04] VERIFIED UPDATED MEASUREMENTS; [05] VERIFIED OUT OF LIMITS DUE TO NO ALLOWABLE LIMITS IN THE SRM; [06] REMOVED FWD CARGO BULKHEAD SUPPORT PER SRM 51-40-02-0G-0; [07] LOCATED AND DRILLED NEW FWD CARGO BULKHEAD SUPPORT ANGLE PO# 830020/1 PER SRM 51-40-05-0G-0 AND DWG 143A9481; [08] VERIFIED LOCATED AND DRILLED NEW FWD CARGO BULKHEAD SUPPORT ANGLE PO# 830020/1 PER SRM 51-40-05-0G-0 AND DWG 143A9481; [09] VERIFIED NEW PART LOCATED AND DRILLED NEW FWD CARGO BULKHEAD SUPPORT ANGLE PO# 830020/1 PER SRM 51-40-05-0G-0 AND DWG 143A9481; [10] INSTALLED AFT BULKHEAD TO FLOOR SUPPORT AT BS 500D LBL 24-RBL 24 PER DRAWING -40-02-0G-0; [11] CORRECTION ON STEP 10 INSTALLATION ON BULKHEAD TO FLOOR SUPPORT PER SRM 51-40-02-0G-0 AND DRAWING # 134A9481 SHT 10; [12] VERIFIED ITEM 11; [13] ADDED PART USE; [14] VERIFIED JOB COMPLETED

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