Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
July 26, 2023
Submitted
August 22, 2023
Operation
Air carrier
Aircraft
N292WN
Make and model
Boeing 7377H4
Aircraft serial
32538
Aircraft time
51,861 hours, 31,244 cycles
Part
Intercostal
Part number
UNKNOWN
Condition
Corroded
Location
Zn 200 Fus Top
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 AFT CARGO BAY INTERCOSTAL ANGLE BELOW SHIELD BS 767+2 RBL 21 WL 156<[01] VERIFIED STEP 1.<BR><BR>VERIFIED MEASUREMENTS TABLE.;[02] REMOVED INTERCOSTAL ANGLE BELOW SHIELD BS 767- 787 RBL 21 WL 156 PER SRM 51-40-02-0G-0.;[03] LOCATED; DRILLED; DEBURRED AND INSTALLED NUT PLATES ON NEW INTERCOSTAL ANGLE BELOW SHIELD BS 767-787 RBL 21; WL 156 PER SRM 51-40-05-0G-0; SRM 51-40-02-0G-0; DWG 146A8123; DWG 146A0081.;[04] VERIFIED CORRECTIVE ACTION #3.;[05] OK TO INSTALL INTERCOSTAL ANGLE BS 767-787 RBL 21 WL 156.;[06] VERIFIED OK TO INSTALL INTERCOSTAL ANGLE;[07] INSTALLED INTERCOSTAL ANGLE BELOW SHIELD BS 767-787 RBL21 WL 156 PER SRM 51-40-02-0G-0; DWG 146A8123.;[08] VERIFIED CORRECTIVE ACTION 7

More about the Boeing 737-7H4