Service difficulty report · Skin · Boeing 737824

Difficulty date
August 11, 2020
Submitted
August 11, 2020
Operation
Air carrier
Aircraft
N76508
Make and model
Boeing 737824
Aircraft serial
31639
Aircraft time
41,891 hours, 14,443 cycles
Part
Skin
Part number
182A4001
Condition
Cracked
Location
Horizontal Stab
Stage of operation
IN
How discovered
V
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

LEFT HORIZONTAL STAB LOWER INSPAR SKIN AT STA 168.70 APPROX 9" FROM L/E SHOW CRACK INDICATION DURING OMNI SCAN. ENDS OF CRACK MARKED AND VERIFIED WITH EDDY CURRENT. COMPLETED REPAIR ON LH HORIZ STAB LOWER INSPAR SKIN AT STA 138.7 APPROX 9" FROM L/E REF SRM 55-10-01 REPAIR 11. ADD EMP:U162482 DIP INSP REQUIREMEMENT INIT 56000 TOTAL FLIGHT CYCLES DETAILED VISUAL INSPECTION AND EXTERNAL LOW FREQUENCY EDDY CURRENT (LFEC) INSPECTION EVERY 9000 FLIGHT CYCLES 737NDT PART 6 51-00-26, FIG 1 REF SRM PARA 5. INSPECTION REQUIREMENTS STAB LOWER IN SPAR SKIN.