Service difficulty report · Skin · Boeing 737824

Difficulty date
June 21, 2020
Submitted
June 22, 2020
Operation
Air carrier
Aircraft
N78509
Make and model
Boeing 737824
Aircraft serial
31638
Aircraft time
41,278 hours, 14,435 cycles
Engine
Cfmint CFM567B262
Part
Skin
Part number
182A40015
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 SKIN AT STA 157.10 SHOW CRACK FWD TO AFT APPROX ONE INCH LENGHT. REPAIRED LH HORIZONTAL STAB CRACK AT STA 157.10 IN REF SRM 55-10-01 REPAIR . INITIATE A DIP TO PERFORM A CATEGORY B INSP THRESHOLD 56.000 FLIGHT CYCLES THERE AFTER 9.000 FLIGHT CYCLES ADD EMP:U231276 U249109 U215510 DETAIL VISUAL INSPECTION AND 9.000 FLIGHT CYCLES EXTERNAL LOW FREQUENCY EDDY CURRENT . INSPECTION MUST BE DONE IN REF SRM 55-10-01 REPAIR 11 STEP 5 TABLE 204 AND FIG 206 . DIP INITIATED TO PERFORM A CATEGORY B INSP THRESHOLD 56.000 FLIGHT CYCLES THERE AFTER 9.000 FLIGHT CYCLES DETAIL VISUAL INSPECTION AND 9.000 FLIGHT CYCLES EXTERNAL LOW FREQUENCY EDDY CURRENT . INSPECTION MUST BE DONE IN REF SRM 55-10-01 REPAIR 11 STEP 5 TABLE 204 AND FIG 206 TOMC-APPROVAL FROM SC1ELBYC COMMENT QC QC REVIEW INSPECTIONS CREATED BY AUTODIP PENDING AIRCRAFT RECORDS AUDIT & UPDATE.