Service difficulty report · Support · Boeing 7377H4

Difficulty date
March 10, 2023
Submitted
April 18, 2023
Operation
Air carrier
Aircraft
N281WN
Make and model
Boeing 7377H4
Aircraft serial
36528
Aircraft time
51,516 hours, 31,045 cycles
Part
Support
Condition
Corroded
Location
Zn 100 Fus Lower
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

MULTIPLE AREA OF CORROSION ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 21 BS 727C+10 TO BS 767 (MARKED)<[01] VERIFIED APPLICABILITY SRM 53-60-53-01-2 FOR IDENTIFICATION AND SRM 53-00-53-1A-2 FOR ALLOWABLE DAMAGE.<BR><BR>STEPS 1-3 COMPLETED.;[02] VERIFIED STEPS 1-3.;[03] FABRICATED NEW/SERVICABLE AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT FROM BS 727 - BS 767 AT OUT OF MATERIAL BAC1496-377#7075T62 LOT#1508577-1 LOCATED AND DRILLED PER SRM#51-40-05-0G-0 AND BOEING DWG#146A7502. OK TO APPLY CHEMICAL CONVERSION COATING AND PRIMER;[04] VERIFIED CORRECTIVE ACTION 3.;[05] VERIFIED MEASUREMENT TABLE.;[06] APPLIED CHEMICAL CONVERSION COATING AND PRIMER TO AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT PER SRM#53-00-53-1A-2 STEPS 2.E.(1)-(2);[07] AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT TO BE INSTALLED ON CUSTOMER CARD NBR#5360-E-16462-NG (TTG8Q004C8NT);[08] VERIFIED CORRECTIVE ACTIONS 6 AND 7

More about the Boeing 737-7H4