Service difficulty report · Support · Boeing 737

Difficulty date
March 2, 2022
Submitted
March 31, 2022
Operation
Air carrier
Aircraft
N763SW
Make and model
Boeing 737
Aircraft serial
27877
Aircraft time
74,817 hours, 44,183 cycles
Part
Support
Condition
Corroded
Location
Fwd Cargo
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 LBL 24 BS 420+5; BS 440+14; BS 460+10; BS 460+10; BS 460+14; BS 500+10; BS 500+14; BS 500+18. / [01] REMOVED CORROSION FWD CARGO BAY TO SIDEWALL SUPPORT AT LBL 24 BS 420+5;TO BS 500+18;IAW SRM 51-10-02; PARAGRAPH 15;EVALUATED ALL REWORKED AREAS;THE DEPPEST AREA BS 420+5 LBL 24;DIMENSION L=1' X W=.8' X DEPTH=.9' ORIGINAL THICKNESS 0.040' REMAINING THICKNESS 0.031' ;FOUND TO BE DAMAGE OUT LIMITS IAW SRM 53-00-53-1A-2 ALLOWAB LE DAMAGE 2 FIG#103 DEATIL 'E' TOOL USED MICROMETER ID ATS499 S/N UNKNOWN DATE 2022.[04] FABRICATED REPLACEMENT FLOOR TO SIDEWALL SUPPORT USING ITEM: BAC1496-444#7075T62 LOT: 1479718-1 IAW SRM 51-40-05 SRM 51-40-02 SRM 51-40-08 AND DWG 143A7501 ID:0001 REV: B. FABRICATED FLOOR TO SIDEWALL SUPPORT SPLICE REPAIR AT BS 500B +10 USING BAC1496-444#7075T62 LOT: 1479718-1 IAW SRM 53-00-53-2R-5 SECTION 4.D-H; SRM 51-40-08 AND 51-40-05.;[05] CERTIFIED CORRECTIVE ACTION #4. CORRECTED ENTRY- APPLICABLE REFERENCE FOR THIS REPAIR IS SRM 53-00-53-2R-6 REPAIR 6. REPAIR SPLICE LOCATED BETWEEN FRAMES. BS 500B +10'.;[06] VERIFIED APPLICABLE REFERENCE FOR THIS REPAIR IS SRM 53-00-53-2R-6 REPAIR 6. REPAIR SPLICE LOCATED BETWEEN FRAMES. STA 500B + 10'.