Service difficulty report · Support · Boeing 7377H4

Difficulty date
January 10, 2023
Submitted
February 7, 2023
Operation
Air carrier
Aircraft
N209WN
Make and model
Boeing 7377H4
Aircraft serial
32484
Aircraft time
59,684 hours, 35,490 cycles
Part
Support
Part number
NOTREPORTED
Part serial
NOTREPORTED
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

CORROSION ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 21 BS 727A+6; BS 727A+14; BS 727B+18; BS 727C+14; BS 727D+6; BS 727D+14; BS 727D+18; BS 727E.<[01] UPDATE STEP 1-8;[02] TABLE MEASUREMENT COMPLETE;[03] VERIFIED APPLICABILITY FOR ALLOWABLE DAMAGE LIMITS OF ACB FLOOR TO SIDEWALL SUPPORT RBL 21 WL 156 IAW SRM 53-00-53-1A-2 ALLOWABLE DAMAGE2;[04] VERIFIED CORRECTIVE ACTION STEPS 1;2 AND 3.;[05] GENERAL FAULT RESOLVED ON OTHER FAULT (FAULT WAS ON ANOTHER FAULT REF:TTG8Q00H67S4;[06] VERIFIED CORRECTIVE ACTION 5 AND THE MEASUREMENT TABLE.

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