Service difficulty report · None · Boeing 737

Difficulty date
November 3, 2021
Submitted
April 29, 2022
Operation
Air carrier
Aircraft
N409WN
Make and model
Boeing 737
Aircraft serial
27896
Aircraft time
67,505 hours, 40,058 cycles
Part
None
Condition
Cracked
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

SUPPLEMENTAL INFORMATION: TYPICAL CRACK EXTENDING FROM FASTENER HOLE OPPOSITE FITTING LATCH AT STA 294.5 BETWEEN S-8R AND S-9R. CRACK LENGTH 1.732' ; / REMOVED R-1 DOOR BODY TORQUE TUBE TO FACILITATE MAINTENANCE. REF B 737 AMM 52-41-41-000-801 STRIPPED PAINT AT FUSELAGE SKIN REPAIR AREA PER B737-700 AMM 51-21-11-150-810.; [04] REMOVED EXISTING FASTENERS AT REPAIR AREA PER B737-700 SRM 51-40-02-0G-0.; [07] PERFORMED HFEC COUNTERSINK INSPECTION ON ALL REMOVED FASTENER LOCATIONS IAW NDTM PART 6; 53-30-00; PROCEDURE 4. NO CRACKS.; [08] CUT OUT AND REMOVED DAMAGED PART OF THE BEARSTRAP PER B737-700 SRM 53-10-01-2R-6 FIG 202.;[11] STARTED FABRICATION OF REPAIR PARTS (DOUBLERS; FILLERS AND SHIMS) PER B737-700 SRM 53-10-01-2R-6 FIG 202 TABLE 201. MATERIAL USED 2024T3.100' PO#1744985; 2024T3.063' PO#1717740; 2024T3.090' PO#1729898.; [12] ACCOMPLISHED DVI OF THE UNDERLAYING STRUCTURE ON THE REPAIR AREA. NO OTHER DAMAGE NOTED INSIDE AND OUTSIDE OF THE REPAIR AREA.; [13] REF STEP 12. B737 SRM 53-10-01-2R-6 4.D.(4); ISSUED SUMMARY EA 21-153-03270. COMPLETED FABRICATION OF REPAIR PARTS (DOUBLERS, FILLERS AND SHIMS) PER B737-700 SRM 53-10-01-2R-6 FIG 202 TABLE 201. MATERIAL USED 2024T3.100" PO#1744985, 2024T3.063" PO#1717740, 2024T3.090" PO#1729898.COMPLETED INSTALLATION OF REPAIR PARTS (DOUBLERS, FILLERS AND SHIMS) PER B737-700 SRM 53-10-01-2R-6 FIG 202.