Service difficulty report · Support · Boeing 73776Q

Difficulty date
January 11, 2023
Submitted
February 16, 2023
Operation
Air carrier
Aircraft
N565WN
Make and model
Boeing 73776Q
Aircraft serial
30282
Aircraft time
56,383 hours, 37,305 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

CORROSION ON FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 24 BS 400+10; BS 400+14.<[01] VERIFIED APPLICABILITY SRM 53-30-53-01-2 FOR IDENTIFICATION AND SRM 53-00-53-1A-2 FOR ALLOWABLE DAMAGE.<BR>REMOVED CORROSION ON FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 24BS 400+10 ADN BS 400+14.<BR>FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2 PARA 4A (2) FIG 103 DETAIL D.<BR>TOOL ID: ATS1225 S/N: UNKNOWN DUE:08/2023;[02] VERIFIED PARTIAL STEPS 1 AND 2 AND CORRECTIVE ACTION 1.;[03] FABRICATED; LOCATED AND DRILLED NEW FLOOR TO SIDEWALL SUPPORT AT RBL 24 BS 400 TO BS 420 WITH NEXT MATERIAL USED BAC1496-444#7075T62 LOT 1515896-1 I.A.W SRM 51-40-05-0G-0 AND DWG 143A7501 AND APPLIED CHEMICAL CONVERSION COATING I.A.W SRM 51-20-01;OK TO PRIME.;[04] VERIFIED CORRECTIVE ACTION 3. OK TO PRIME.;[05] APPLIED PRIMER ON NEW FLOOR TO SIDEWALL SUPPORT. PER SRM 20-41-02;[06] VERIFIED CORRECTIVE ACTION 5 AND MEASUREMENT TABLE.

More about the Boeing 737-76Q