Service difficulty report · Support · Boeing 7377H4

Difficulty date
July 4, 2023
Submitted
August 10, 2023
Operation
Air carrier
Aircraft
N965WN
Make and model
Boeing 7377H4
Aircraft serial
36677
Aircraft time
38,362 hours, 23,630 cycles
Part
Support
Part number
UNKNOWN
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

FLOOR TO SIDEWALL SUPPORT HAS CORROSION BS 727A+5 - 727E+3 LBL 20 WL 156<[01] VERIFIED APPLICABILITY FOR ALLOWABLE DAMAGE LIMITS OF ACB FLOOR TO SIDEWALL SUPPORT; BS727A+5 727E+3 LBL 20 WL 156 IAW SRM 53-00-53-1A-2 ALLOWABLE DAMAGE 2.;[05] FABRIACATED LOCATED AND DRILLED ON AFT CARGO BAY L/H NEW FLOOR TO SIDEWALL SUPPORT BS 727 TO BS 847;LBL 20 WL 156 MATERIAL USED BAC 1496-377#7075T62 LOT#1526048-1;AND SPLICE BTW BS 727'E' TO 747;LBL 20 WL 156 ;MATERIAL USED BAC1496-377#7075T62 LOT#1526048-1;IAW SRM 51-40-05 ;SRM 53-00-53-2R-6 REPAIR 6 AND DWG 146A7502 REV:- OK TREAT AND PRIME.;[06] VERIFIED CORRECTIVE ACTION 5.<BR>OK TO TREAT AND PRIME[08] INSTALLED SPLICE SIDEPLATE BETWEEN 727E AND 747 ZEE CHANNEL SIDEPLATES AND ATTACH FITTINGS AND NUT PLATES IAW SRM 53-00-53-2R-6; SRM 51-40-10-2R-0 & DWG146A7502 REV:-.;[17] PARTIALLY INSTALLED NEW FLOOR TO SIDEWALL SUPPORT AT BS 727A - BS847 LBL 20 WL 156 IAW SRM 51-40-02-0G-0 & DWG 146A7500 ID: 0181 REV:- & DWG 146A7502 ID:0001 REV:A.;[18] COMPLETED INSTALLATION OF NEW FLOOR TO SIDEWALL SUPPORT AT BS727 TO BS847 LBL20 WL156 IAW SRM 51-40-02-0G-0; DWG 146A7500 ID: 0181 REV:- & DWG 146A 7502 ID:0001 REV:A.;[19] VERIFIED ITEM 18 CORRECTIVE ACTIONS.;[20] VERIFIED STEPS 1;2 COMPLETE. <BR>VERIFIED MEASUREMENTS.

More about the Boeing 737-7H4