Service difficulty report · Skin · Boeing 737924

Difficulty date
April 18, 2022
Submitted
April 21, 2022
Operation
Air carrier
Aircraft
N35407
Make and model
Boeing 737924
Aircraft serial
30124
Aircraft time
56,892 hours, 23,270 cycles
Part
Skin
Part number
182A4001
Condition
Cracked
Location
Skin Sta 142
Stage of operation
IN
How discovered
O
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

CRACK FOUND AT LEFT HORIZONTAL STABILIZER LOWER SKIN AT STAB STA 142.45 I/B ROW, 15" FROM REAR SPAR , CRACK LENGHT : 0.551". REF. AAR NR:9649199 REQUIREMENTS INSPECTION THRESHOLD 56,000 TOTAL FLIGHT FLIGHT CYCLES EXTERNAL LOW FREQUENCY EDDY CURRENT (LFEC) CYCLES REPEAT INSPECTIONS DETAILED VISUAL INSPECTION 9,000 INSPECTION 9,000 FLIGHT CYCLES NEED TO INITIATE DIP FOR REPETITIVE INSPECTIONS IAW SRM 55-10-01-2R-11 REPAIR 11 TABLE 204: CATEGORY B REPAIR INSPECTION TOMC APPROVED FOR AN INSPECTION THRESHOLD AT 56,000 TOTAL FLIGHT TOMC-APPROVAL FROM SC1ELBYC COMMENT CYCLES AND REPEAT INSPECTIONS DETAILED VISUAL INSPECTION AND LFEC (LOW FREQ EDDY CURRENT) INSPECTIONS 9,000 FLY CYCLES IN REFERENCE WITH SRM 55-10-01-2R-11. QC REVIEWED QC REVIEWED INSPECTIONS CREATED BY AUTODIP PENDING AIRCRAFT RECORDS AUDIT & UPDATE.